1. 用所给单词的适当形式填空

1. （1） I'm planning(give) a surprise to my mother for her birthday.
   

3. （2） He (weight) only 70 kilos now after taking a balanced diet.
   

5. （3） The old man died from (smoke).
   

7. （4） Let's try (do) exercise as much as possible.
   

9. （5） I (play) basketball for about ten years.
   

11. （6） My sister always (learn) a language very quickly.
    

13. （7） When our teacher(come) into the classroom , we were talking.

15. （8） I  (be) sixteen years old next year.
    

17. （9） Jim and Kate (marry) for 10 years.
    

19. （10） My American friends (visit) Beijing last spring.
    

21. （11） By ten o'clock yesterday evening they (watch) TV for 12 hours.  
    

23. （12） Our teacher hoped that we (succeed) someday.
    

25. （13） The students(make) great progress in their spoken and written English in the last two months.
    

27. （14） My friend(work) here since he graduated from college.

29. （15） Lily told me not to give up (study) English.