By the time Jason arrived to help, we moving everything. A. had already finished
Câu hỏi:
By the time Jason arrived to help, we ________ moving everything.
Trả lời:
Đáp án: A
Giải thích: By the time + S + Vqk, S + had Vp2: trước khi...thì...
Dịch: Trước khi Jason đến giúp đỡ, chúng tôi đã chuyển mọi thứ xong rồi.
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