19. -Mum, have you seen my mobile phone?

-　　　　　 　you bought last week? I’m afraid I haven’t seen 　　　　　　　　　.

　　　　　 A．The one; it　　　 B．The one; one　　　　 C．One; it　　　　　　　　　 D．One; one

20 Although there is no life on Mars now , some scientists think that there 　　　　some form of life a long time ago .

A．must be　　　　　　 B．may have been　　 C．can have　 been 　 D．could be

18. -Any suggestions ?

　　　 -You’d better 　　　　　　the last sentence as it is rather misleading .

　　　 　A．put out 　　　　　　 B．leave out 　　　　　 C．point out 　　　　　 D．pick out

17. It is the city 　　　　　　you are going to pay a visit to 　　　　　　this kind of beer is produced .

　　　 A．/; where 　　　　　　 B．where ; that 　　　 C．/; that 　　　　　　　　 D．that ; which

16. The thought of going home to his family was all 　　　　kept him happy while he was working abroad .

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

15. Many people in this country eat 　　　　as they actually need every day.

　　　 　A．twice as much meat 　　　　　　　　　　　　　 B．twice meat as much

　　　 　C．as twice much meat 　　　　　　　　　　　　　 D．meat as much twice

14. _________ to his research work, the professor cared little about any other things.

　　 　A. Devoting　　　 B. Devoted　　 C. Having devoted　　　 D. To devote

13. -- Jenny, I think I'll just have some coffee for a change.

　 　　--_______. The coffee I bought yesterday is in the cupboard.

　　 　A. Change it, please　　 B. Never mind　　 C. With pleasure　　 D. Help yourself

12. According to a new study by a British university , learning 　　　　second language can lead to 　　　　increase in your brain power .

　　　 　A．a ; the 　　　　　　 B．不填; the 　　　　　 C．a; an　　　　　　　　　 D．the ; an

11. If it were not for the fact that she ________ sing, I would invite her to the party.

　 　　A. couldn't　　　 B. shouldn't　　　　 C. can't　　　　　 D. might not

10._________ homework did we have to do that we had no time to take a rest.

　 　　A. So much　　　 B. Too much　 　　　C. Too little　　　 D. So little