We shall not start the project until it_____ by the committee.

A. will be approved B. has been approved

C. approves D. is to approve

 

B

【解析】

試題分析：考查時態(tài)。句意：在委員會通過之前，我們決不能開始這個項目。Until引導(dǎo)時間狀語從句，從句用一般現(xiàn)在時代替將來時，排除A、D；project與approve是動賓關(guān)系，即項目是被通過的，應(yīng)該使用被動語態(tài)，排除C，故選B。

考點：考查時態(tài)

 

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