Câu hỏi:
I didn't go with them since I……………..for a test on the following day.
- A must have prepared
- B have been preparing
- C had to prepare
- D was being prepared
Phương pháp giải:
Lời giải chi tiết:
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Câu hỏi:
I didn't go with them since I……………..for a test on the following day.
Phương pháp giải:
Lời giải chi tiết:
Câu hỏi trước