Unit3 Computers(二)课后练习
主讲教师：麻雪玲 北京市英语教师
题一：
Professor James will give us a lecture on the Western culture, but when and where _____ yet.
A. hasn’t been decided B. haven’t decided
C. isn’t being decided D. aren’t decided
题二：
I got caught in the rain and my suit _____.
A. has ruined B. had ruined
C. has been ruined D. had been ruined
题三：
The school board is made up of parents who ______ to make decisions about school affairs.
A. had been elected B. had elected
C. have been elected D. have elected
题四：
—The window is dirty.
— I know. It ________ for weeks.
A. hasn’t cleaned B. didn’t clean C. wasn’t cleaned D. hasn’t been cleaned
题五：
The old man ______ since he moved to the nursing home.
