12. The sales boy thought he could persuade the boss of the company _____ buying some e-books.

　 A. about　 B. into　 C. to　 D. on

11. I haven’t seen you for a couple of days. What have you been up _____?

　 A. in　 B. to　 C. with　 D. for

10. _____ the mountain flood, the old woman insisted _____ remaining in her house.

A. Though; on　 　　　　B. Because of; to

C. In spite of; on　 　　　　D. For; in

9. The wounded soldiers were _____ danger, because we had run _____ medicine.

A. in; of　 B. into; out　 C. at; up　 D. in; out of

8. The workers and technicians worked hard _____ to get the Great Hall finished before National Day.

A. like a crazy　　 B. as a crazy　

C. like crazy　 　　D. as crazy

7. She turned ______ the pages quickly _____ a practiced hand.

A. on; at　 　　　　　B. over; with　

C. back; for　　　　 D. for; by

6. The roads are lined _____trees, which have been planted to hold _____the strong winds from the north.

A. along; to　 　B. on; up　

C. with; back　 D. in; against

5. He earned enough money to start his own business _____ offering guide services _____ tourists.

　 A. by; to　 　　　　B. with; at　

　 C. on; for 　　　　　D. through; with

4. _____ the night, we did nothing but _____ there, waiting for him to come.

　 A. All through; sit　　　 B. All over; to sit　　

　 C. Whole; sitting 　　 D. Throughout; sat

3. _____ your help, we _____ complete the work in time.

　 A. Thanks to; were able to B. Thanks to; could

　 C. As; would　　　　　　 　　　 D. Because; had to