Đề thi giữa kì 1 Tiếng Anh 9 có đáp án (Đề 2)
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He was tired, ........ he took a rest before going on the work

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Choose the best answer to complete each sentence below.

He was tired, ............................... he took a rest before going on the work.

so

and

but

if

Giải thích

Đáp án A