－When will the expert come and give the lecture on economic development 
－Not until our program ____by the government
A．a(chǎn)pprovesB．is to approve
C．will be approvedD．has been approved
D

試題分析：考查時(shí)態(tài)語(yǔ)態(tài)：句意：--什么時(shí)候?qū)＜襾?lái)給我們做經(jīng)濟(jì)發(fā)展的講座？--直到我們的項(xiàng)目被政府批準(zhǔn)。因?yàn)閚ot until后面不能用將來(lái)時(shí)，用一般現(xiàn)在時(shí)或現(xiàn)在完成時(shí)，而且our program和approve是被動(dòng)關(guān)系，選D。
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