We __ our classroom for the upcoming Teachers' Day, but there's still

Câu hỏi :

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.

A. are decorating

B. decorated

C. have been decorating

D. have decorated

* Đáp án

C

* Hướng dẫn giải

Đáp án C

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