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I ………………………………….…. the washing up when the phone rang.      (do)

I ………………………………….…. the washing up when the phone rang.      (do)

Câu hỏi

Nhận biết

I ………………………………….…. the washing up when the phone rang.      (do)


Đáp án đúng:

Lời giải của Luyện Tập 365

Đáp án: was doing        

Giải thích:  “when’ được sử dụng để nối hai mệnh đề chỉ hành động, hành động này đang diễn ra thì có một hành động khác xen vào. Do vậy, một vế sẽ được chia ở quá khư đơn giản, vế còn lại hành động xảy ra dài hơn sẽ được chia ở thì quá khứ tiếp diễn.

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