【題目】We shall not start the project until it __________ by the committee.

A. will be approved B. approves

C. has been approved D. is to approve

【答案】C

【解析】試題分析：考查時(shí)態(tài)。句意：在委員會(huì)通過之前，我們決不能開始這個(gè)項(xiàng)目。Until引導(dǎo)時(shí)間狀語從句，從句用一般現(xiàn)在時(shí)代替將來時(shí)，排除A、D；project與approve是動(dòng)賓關(guān)系，即項(xiàng)目是被通過的，應(yīng)該使用被動(dòng)語態(tài)，排除C，故選B。

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