We ______ the roof for Mrs. Smith, an elderly childless woman, when it ______ with rain.

Câu hỏi :

We ______ the roof for Mrs. Smith, an elderly childless woman, when it ______ with rain.

A. were mending - was pouring

B. mended - poured

C. mended - was pouring

D. were mending - poured

* Đáp án

D

* Hướng dẫn giải

QKTD when QKĐ

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