19. A. look after 　B. look at C. look like D. look the same E, look up

18. A. How long B. How old C. How much D. How often E. How many

17. A. That's all right 　　B. That's right/Right 　C. All right

D. right 　　　E. That's all

16. A. there are 　　B. there is 　　C. have 　　　D. Has

15. A. some times 　B. sometime/some time C. some time D. sometimes

14. A. on 　　　　　　　　　　B. at, in, at, at, on

　C. at, at 　　　　　　　　D. on. on. at 　　　　E. in. on

13. A. studied, learned 　　　B. studying

C. study; learn 　　　　　D. learn/study, learn

12. A. problem; question　　 　B. problem, questions

10. A. carrying　　　　 B. bring 　　　　C. taken　　 　D. get

Key 2: 　11. A. Each. Every 　　　　　B. each

9. A. also 　　　　　　B. too