23. George decided it was such a rare car that he _____ it only for a few exhibitions.
A
used
B
was using
C
had used
D
would use
25. ––Have you asked Peter for advice?
––No, he ______ someone, so I didn’t disturb him.
31.Social and cultural activities for senior citizens ______ over the past several years.
34.Wait a moment. The director _____ her assistant pick up some sandwiches for the meeting.
句意：乔治认为这辆车非常稀罕，所以他只会拿它展示很少的几次。主句中使用了一般过去时，故宾语从句中应用过去将来时。故选D。
过去将来时及其被动式
判断语境
抓不住要点
难度适中