Đề thi giữa kì 1 Tiếng Anh 8 Thí điểm có đáp án (Đề 1)

Mr Smith was busy he spent the whole day with his children yesterday

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Mr. Smith was busy; …………….. he spent the whole day with his children yesterday.

however

although

if

therefore

Giải thích

Đáp án: A