22．She is very dear to us. We have been prepared to do 　　　　it takes to save her life.

A. whichever 　　　　　　 B. however 　　　　　　 C. whatever 　　　　　 D. whoever

21．Because of the financial crisis, days are gone _　 _ local 5-star hotels charged 6,000 yuan for one night.

A. if　　　　　　　　　 B. when　　　　　　 C. which　 　　　　　　D. since

20．Have you　considered　the　students’ request _________ the school library _______ more books on popular science?

A. that　; provide 　　　　　　B. when ; provided　　

C. which　; should provide　　 D. where; would provide

19．A person ______ e-mail account is full won’t be able to send or receive any e-mails.

A. who　 　　B. whom　　 　　　　　C. whose　 　　　　　D. whoever

18．It is obvious to the students ______ they should get well prepared for their future.

A. as　　 　　B. which　　 　　　　C. whether　　 　　　D. that

17．I’m sorry you’ve been waiting so long， but it’ll still be some time ____ Brian gets back.

A. before　 　B. since　 C. till　 D. after　

16．The house I grew up ________ has been taken down and replaced by an office building.

A. in it　　　 B. in　　　 C. in that　　　 D. in which

15．I invited Mary and Jane to dinner, but 　　　　of them came.

　　　 A．none　　 　　　　　 B．either　　 　　　　　 C．both　　 　　　　　　 D．neither

14．The plant is dead . I ________ it more water.

　　 A. will give　　 B. would have given　 C. must give　　 D. should have given

13．The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.

A. what　　　　　 　　B. which　　　　 　　C. that　　　 　　　　D. though