CHUYÊN ĐỀ 23: TỪ NỐI (LINKING CONJUNCTIONS)
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No one will be allowed to leave the room…………the exam is in progress. A. such as B. as though C. during D. while

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No one will be allowed to leave the room…………the exam is in progress.

such as

as though

during

while

Giải thích

Chọn D