13. What a pity! I _______ in Hainan two more days, but something urgent needed to be dealt with back home.

A. must have stayed　　 　　　　　　　　 B. needn’t have stayed　　

C. could have stayed　　　　　　　　　　　 D. may have stayed

12. -Have you read the books?

-Yes. I’ve read all the books _____ you gave me because they are the best ones _____ I have ever read.

A. that; that　　 B. which; which　　 C. what; which　　 D. who; what

11．Hit by a hammer, my foot became _____ .

A．three times bigger than　 　　　　 B．as big three times

C．the normal size three times　 　　 D． three times the normal size

10．I’ll give you my friend’s home address, ____ I can be reached most evenings.

A．where　　　 　　 B．when 　　　　　 C．whom 　　　　　 D． which

9.　 The country has already sent up three unmanned spacecraft, the most recent ____ at the end of last March.

A．has been launched 　　　　　　　 B．having been launched　

C．being launched 　　　　　　　　　 D．to be launched

8．The cowboy _______ the cattle that _____ eating grass here and there.

A．drove up; was　　　　　　　　　　 B．picked up; were

C．rounded up; was 　　　　　　　　 D. rounded up; were

7．A good idea occurred to Mr Baker ______to his invention recently.

A．while applying　　 　　　　　　　 B．while applied　　

C．while he was applying himself　　 　　　　　　　　　 D． while applying himself

6. We shouldn’t complain about being poor　-- many families are _____ than we are.

　　 A. worse off　 　　B. badly off　　 　C. well off　　　　 D. better off

5. Come and see me whenever_______. 　 A. you are convenient　　　　 B . you will be convenient

C. it is convenient to you　 　　D. it will be convenient to you

4. The plane flew ___ in the sky and people spoke _____ of the experienced pilot.

A．highly；highly　　 B．high；high 　　C．high；highly　　 D．highly；high