问题补充:
Kathy told me that all the doors and windows when she arrived this morning.
A. have cleaned
B. have been cleaned
C. had cleaned
D. had been cleaned
答案:
A. have cleaned
B. have been cleaned
C. had cleaned
(答案→)D. had been cleaned
解析:考查时态语态,句意是:kathy告诉我当她今天早上到的时候,所有的门窗都檫干净了。说明门窗是在她到之前就被檫干净了。选D。