Since every penny of the grant………………spent on equipment, we started looking for volunteers to do the cleaning.

Câu hỏi :

Since every penny of the grant………………spent on equipment, we started looking for volunteers to do the cleaning.

A must have been      

B would have been            

C has been

D had to be

* Đáp án

D

* Hướng dẫn giải

Phương pháp giải:

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