问题
选择题
一When shall we start the restoration of the historic buildings?
一Not until our plan________ by the committee.
A.will be approved
B.approves
C.is to approve
D.has been approved
答案
答案:D
这题考查时态语态,our plan和approve是被动关系,用被动,选择A或D。A项是一般将来时,not until引导的是时间状语从句,不能用将来时,可以用一般现在时或现在完成时,选D。