I ____________ (chat) with my friends while my teacher ____________ (teach) the lesson yesterday.

Câu hỏi :

I ____________ (chat) with my friends while my teacher ____________ (teach) the lesson yesterday.

A was chatting – teaching

B was chatting – was teaching

C was chatting – taught          

D chatted - taught

* Đáp án

B

* Hướng dẫn giải

Phương pháp giải:

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