Đề thi Tiếng Anh 9 Học kì 1 có đáp án (Đề 1)
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He is tired, _________ he has to stay up late

20/30

Choose a, b, c or d to complete these sentences.

He is tired, _________ he has to stay up late.

therefore

so

and

but

Giải thích

Đáp án D