Câu hỏi:
The students__________busily when Miss Brown went to get a book she_________in the office.
- A had written/ left
- B were writing/ has left
- C had written / had left
- D were writing/ had left
Phương pháp giải:
Lời giải chi tiết:
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Câu hỏi:
The students__________busily when Miss Brown went to get a book she_________in the office.
Phương pháp giải:
Lời giải chi tiết:
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