?21．I lost the book I ＿＿＿＿． ??
A．have bought ? ?B．bought ? ? C．had bought ? ? D．had been bought ?

22．The bus had gone when I ＿＿＿＿ at the bus stop． ??
? A．have arrived ? ?B．a(chǎn)rrived ? ? C．had arrived ? ?D．a(chǎn)m arriving ??
?
23．Tom ＿＿＿＿ of visiting his grandmother，but the bad but the bad weather made him change his mi． ??
? A．has thought ? ?B．thought ? ? C．had thought ? ?D．had been thought ?
?
24．—Did you meet Tom at the airport？ ??
? ? —No，he ＿＿＿ by the time I ＿＿＿ there． ??
? A．has left；got ? ? ? ? ? ?B．had left；arrived ?
? C．left；arrived ? ? ? ? ? ?D．left；had got ??
?
25．—Why didn't Tom attend the meeting yesterday？ ?
? ? —He ＿＿＿＿ Beijing． ??
? A．has gone to ? ?B．had gone to ? C．went to ? ? ?D．had been to ?
?
26．—I ＿＿＿＿ to come to help you． —But you didn’t come． ??
? A．have meant ? ? B．had meant ? ?C．meant ? ? ? D．will mean ??
?
27．Finally Mary was admitted by Beijing University，for which she＿＿＿ five times． ??
? A．had tried ? ? B．was trying ? C．has tried ? ? ??
?
28．—I have bought you the books you want．
?—Oh，good，I ＿＿＿ afraid you had forgotten． ??
? A．was ? ? ? ?B．a(chǎn)m ? ? ? C．had been ? ? ?D．have been
?
29. When Li Ming hurried home, he found that his mother ____already ____to hospital. ??
A has; been sent ? ? ? ? ?B had; sent ? ? ?C has; sent ? ? ? D had; been sent ?
?
30. We ____five English songs by the end of last term. ?
?A had learned ? B ?learned ? C have learned ? D will have learned?
?
?【答案解析】
??21-25 CBCBB ? ? 26-30 BAADA