1.Mr.Bush,have you read the novel ?
Yes. When I was studying in Beijing University,I___it.
A.read B.have read C.would read D.had read
答案:A 为什么不选B?
2.The exhibit is on view here for three months ,after____it will travel to another city.
A.that B.then C.when D.which
答案:D
3.The difficulty they had ____the orphans was beyond my imagination .
A.supporting B.support C.supported D.to support
答案:A
4.Don't worry. I'll be back before you _____.
A.left B.have left C.will leave D.had left
答案:B