Câu hỏi:

17/07/2024 189

I was very busy lately since the project of designing the new collection started.

A. was 

Đáp án chính xác

B. since

C. the project

D. the new collection

Trả lời:

verified Giải bởi Vietjack

Đáp án A thành “have been”

Giải thích: Hiện tai hoàn thành + since + quá khứ đơn.

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