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Đáp án:

 BẠN HỌC QT HẢ

Câu 1: C. have escaped / are trying

Câu 2: C. whether I had seen

Câu 3: B. Peter is said to have worked in Vietnam.

Câu 4: B. Peter offered to give me some coffee.

Câu 5: A. are being studied

Câu 6: A. that

Câu 7: D. contribute

Câu 8: B. that most of which

Câu 9: B. grown

Câu 10: D. Unless John had lived in China for ten years, he could not have spoken Chinese fluently.

Câu 11: D. Ø / an

Câu 12: D. missed/ would get

Câu 13: C. graduated/ worked

Câu 14: A. requirements