Mrs Brown will have worked at this school for 30 years……………

Câu hỏi :

Mrs Brown will have worked at this school for 30 years……………

A. by the time she retires

B. when she retired

C. as soon as she had retired

D. after she had retired

* Đáp án

A

* Hướng dẫn giải

by the time + mệnh đề: dùng trong thì tương lai hoàn thành

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