Câu hỏi:
19/07/2024 87I was very busy lately since the project of designing the new collection started.
A. was
B. since
C. the project
D. the new collection
Trả lời:
Giải bởi Vietjack
Đáp án: A thành “have been”
Giải thích: Hiện tai hoàn thành + since + quá khứ đơn.
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