---When shall we start the reconstruction of the historic building?
--- Not until our program ______ by the authority.
A．will approveB．will be approved
C．has approvedD．has been approved
D
考查時(shí)態(tài)。句意：我們什么時(shí)候開始這個(gè)古建筑的重建？——直到我們的計(jì)劃被當(dāng)局批準(zhǔn)后�？芍挛拿枋龅氖窃谀硞�(gè)時(shí)間點(diǎn)前完成的動作，我們的計(jì)劃是動作的對象，故用完成時(shí)態(tài)，被動語態(tài)，選D。
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