While the waiter was picking up the broken plates, he ---------- his finger. A.

Câu hỏi :

While the waiter was picking up the broken plates, he ---------- his finger.

A. cut

B. was cutting

C. had cut

D. cuts

* Đáp án

A

* Hướng dẫn giải

Vế sau ở thì quá khứ đơn, quá khứ đơn của "cut" là "cut" không đổi.

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