Cambridge C1 Open Cloze: One-Word Grammar and Phrases

Complete this original text. Write exactly one word in each gap. There are no options.

When a quiet room changes a school

A secondary school recently turned an unused office into a silent study room. The change was, (1) ______ a sense, minor: no new course was created, and only twelve seats were added. Even on paper, before anyone used the room, the policy let pupils choose when to work alone. The school had, (2) ______ effect, introduced a new kind of timetable. Some teachers had expected the room to reduce conversation across the school. On the (3) ______, pupils began discussing their work more carefully after leaving it.

The project succeeded (4) ______ some extent, since the room was full before several exams. Yet it worked only (5) ______ to a point: students who needed direct help still preferred the library desk. The room became a bridge, as it (6) ______, between busy lessons and independent work. It was not only the furniture that mattered (7) ______ also the clear rule that phones remained outside. Demand grew quickly, with the result (8) ______ the school introduced a booking sheet.

A topic-only guesser may see school and write education in gap 7. That word matches the topic, but it cannot complete the grammar not only ... ___ also. The gap needs one word that works with everything around it.

Cambridge C1 Advanced Reading and Use of English has eight parts and 56 questions in 1 hour 30 minutes. Part 2, Open cloze, contains eight gaps, each representing one missing word, and tests grammar and vocabulary. Each correct answer is worth one mark. More practice lives in the Cambridge C1 and C2 vocabulary hub and the broader Exam English hub.

Solve three layers at once

For every gap, test three things:

1. Grammar: What word class and structure can fit?
2. Phrase: Does the word complete a fixed or common expression?
3. Discourse meaning: Does the completed expression perform the move the text needs?

Do not write the whole phrase. If the text shows ___ a sense, the answer is in, not in a sense.

Six phrase decisions in priority order

1. In a sense

In a sense marks a claim as true from one perspective or in one respect, while leaving room for it not to be fully true in every respect. The room was a minor change if we count physical alterations. That is one valid way to view it.

This is not the same decision as to some extent, which marks partial degree. The expressions can overlap in some sentences, so do not force them into rival answer slots without grammatical evidence. In gap 1, the noun is already visible and the frame ___ a sense fixes the preposition in. A completion such as way cannot replace the visible noun. The exercise does not pretend that topic meaning alone separates the pair.

2. In effect

In effect presents the practical result or substance of earlier facts: what they amount to, even if that is not the formal label. The school did not call the room a timetable change, but giving pupils a choice about when to work alone had that practical effect.

In practice often refers to what happens in real operation, and it can overlap with in effect. The useful tendency is that in effect highlights the resulting substance: “this amounted to a new timetable.” Because overlap is real, gap 2 leaves effect visible and asks only for the preposition in the fixed frame ___ effect. It does not ask you to rank effect, practice, principle, or essence in an open noun slot.

3. On the contrary

On the contrary asserts the opposite of an idea that has just been rejected. The expectation was that conversation would fall. The next fact says the reverse: discussion became more careful.

On the other hand adds a second consideration while the first one remains true. It does not normally correct a proposition. If the text said, “The room was quiet. On the other hand, the library offered direct help,” both facts would stand. Gap 3 follows a claim that the results reject, so contrary completes the correction.

4. To some extent

To some extent limits a claim by saying it is partly, but not wholly, true. The project had evidence of success: the room filled before exams. The phrase controls degree.

Compare it with up to a point. Both can mark partial truth, and the boundary is a tendency, not a rule. Up to a point often brings the limit or coming objection into sharper focus. Gap 4 leaves some extent visible, so only the preposition to is missing. Never make the two expressions rival answers when both fit the same syntax and context.

5. Up to a point

Up to a point accepts a claim within limits and often prepares the reader for the boundary that follows. The room worked for independent study, but not for students who needed direct help.

The contrast with completely is factual. Completely removes the limit; up to a point states one. The next clause supplies the limit, so a word suggesting total success would contradict the text.

6. As it were

As it were marks nearby wording as figurative, approximate, or deliberately unusual. The room was not literally a bridge. It connected two modes of learning, so bridge is metaphorical.

So to speak substantially overlaps and can do the same metalinguistic job. No fair one-answer item should mark it wrong when both phrases fit. Here the printed frame as it ___ makes were the only completion. Punctuation commonly sets the parenthetical phrase off with commas.

Answer key

Gaps 7 and 8 are grammar-led. But is licensed by the visible not only and also; that completes the fixed result frame with the result that. A noun related to school would fail even if it matched the topic.

Why no overlapping synonym trap appears

The text does not offer to some extent and up to a point as competing answers to one gap. Their profiles record real overlap. Instead, the surrounding words fix ___ some extent and ___ to a point, while the next clauses demonstrate their common tendencies.

The same safeguard applies to as it were and so to speak. Both can flag figurative language, so the gap tests the fixed frame, not an invented meaning difference. Likewise, in effect and in practice can overlap; gap 2 exposes effect and tests its preposition rather than placing overlapping nouns in one open slot.

Wrong-choice repair

Consider this attempted completion:

The project succeeded to some point, since the room was full before several exams.

The idea of a limit is relevant, but the form is wrong. English uses to some extent and up to a point, not to some point for this discourse function.

Repair it in either grammatically complete way:

• “The project succeeded to some extent.”
• “The project succeeded up to a point, but students needing help used the library.”

The second version makes the boundary explicit. The first simply limits the degree. Context, not a memorized slogan, decides which full sentence you need.

Common mistakes

• Writing two or three words in a one-word gap.
• Choosing a noun because it matches the topic while ignoring the frame.
• Treating on the contrary as a general contrast marker. It corrects a rejected idea.
• Assuming in a sense always means the same as “partly.” It can mark a perspective rather than an amount.
• Claiming in effect and in practice never overlap.
• Forgetting that punctuation and the words on both sides of a gap are evidence.

Quick check

Complete each with one word.

1. The plan was useful up to a point, but it could not serve remote learners.
2. The new rule did not reduce choice; on the contrary, it created two options.
3. The archive became the city’s memory, as it were.
4. It was not only cheaper but also easier to repair.

For each answer, underline the visible frame that licenses it. If your reason is only “it fits the topic,” check again.

Fresh practice

Complete this new short text with one word per gap:

The community garden was, (1) ______ a sense, a classroom without walls. It did not replace science lessons; on (2) ______ contrary, teachers used it to make those lessons more concrete. The project worked up (3) ______ a point, because winter weather limited access. It became a laboratory, as it (4) ______, where pupils could observe change directly.

Answers: in, the, to, were. The visible words make the completed frames in a sense, on the contrary, up to a point, and as it were; no synonym choice is hidden inside a blank. Now explain the grammar and discourse job of each completed phrase before checking the key.

Sources

• C1 Advanced exam format
• Preparing for C1 Advanced

Related

• Cambridge C1 Use of English Part 1: collocations and shades
• Cambridge C1 key word transformations vocabulary
• Cambridge C1 word formation vocabulary families
• Natural collocations for “par for the course” at work

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