1. Could I sit here?(否定回答) Sorry,   .

() 20. —Can you help me with my homework this evening? — .

   A. No problem   B. You are welcome

   C. That's all right   D. Thank you

() 19. —Thank you for helping me look after my baby. — .

   A. Good idea   B. That's nice

   C. I hope so   D. You’re welcome

() 18. I think it's difficult to swim the Yangtze River.

   A. past   B. over   C. across   D. on

() 17. , do you like the food here in the restaurant?

   A. By way   B. On the way

   C. In the way   D. By the way

() 16. The doctor says that Mr Green has to in hospital for two days. He^,s ill.

   A. live   B. stay   C. work   D. sit

() 15. How much should I for these five books?

   A. pay   B. cost   C. take   D. spend

() 14. She is an girl. It means she is .

   A. 16 years old;16 years old   B. 16-year-old;16 years old

   C. 11years old;ll-year-old   D. ll-year-old; 11 years old

() 13. ! There is a snake in- the bushes.

   A. Come on   B. Really   C. Look out   D. Don’t be afraid

() 12. How much money did your club raise the poor children?

   A. about   B. for   C. towards   D. to