1.It must __C_____ that China has the right to be accepted as a member country of WTO.A.point out B.have poined out C.be pointed out D.be pointing out
解析：.point out 指出,指明 题中需要用被动,所以选C
2.Don't be afraid that books of this kind ____.It is saidthat the books in my friend's bookstore ____A____out.
A.don't sell;have been sold B.aren't sold;have sold C.don't sell;have sold D.aren't sold;have beensold
解析：第一空不大明白.第二空表示已经卖完,要用现在完成时的被动语态.
3.At the lecture,the professor ___D______with great interest.No one would miss a word from him.
A.was listening B.was listening to C.was listened D.was listened to
解析：考查被动语态.教授是被听,所以选D
二.改错.
1.He slipped on the roof and was fell off it.
改：把was去掉
2.Shanghai,which called the Pearl of the East,has been developing very rapidly in the past twenty years.
改：在which和called中间加一个is
3.The boy felt gloomy,for be had been scolding for his mistakes in his exercise several times in the past few days.
改：把scolding改成scolded
4.The students are all going.Why didn't you stop them?
改：把didn't改成don't
5.The ship was put into quarantine(检疫) and passengers and crew forbidden to land.
改：在crew和 forbidden 中间加一个were
6.This car has driven a long way today.You'd better let it stay still for a while.
改：在has 和driven 中间加一个been
7.When everything came to light,my friend was proved to be innocent.
去掉was
8.-Sir,you are wanting on the phone on the third floor.-Thank you.I'll be there.
改：把wanting改成wanted
9.After a thorough search,the mysterious object was found fixing to the ceiling.
改：把fixing改成fixed
10.-What did people think of his performance in the play?-He thought to act badly in it.
改：thought to 前面加一个was
11.I went to the library to returned the books that had borrowed from it.
改：returned改为return；that had 之间加一个I
12.Another thief was seen get on the crowded bus.I knew what he was up to.
改：get 改成getting