Bộ 5 đề thi giữa kì 1 Tiếng Anh 8 Global Success có đáp án (Đề 3)
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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

A