答案：
一、was did went had wasn’t weren’t spent cooked read cleaned lived studied
二、 did do did do went went
三、d 2. studied 3.Did go 5. was d had 10.Did have
四、 come 2.Did play did didn’t 3.Where did go 4. Did watch homework last night
五、1.D 2.B 3.B 4.D 5.B 6.A 7.B 8.D 9.D 10.A 11.C 12.C 13.D 14.A 15.C 16.A 17.D 18.B 19.C 20.A 21.A 22.C 23.A 24.A 25.A
六、1. is-was 2. go-went 3. goes-went 4. can-could 5. saw-see 6. wasn’t-didn’t 7. didn’t-didn’t do 8. wait-waited 9. find-found 10. did he-did he do
七、 2. didn’t go，got 3. read 4. was 5. called do watch 11. Did go 1 get got 13. made 14. told 16. were 2n’t clean 23.Was were had 28.Did finish do 3 do find 38.Did finish give 42. had 4 talked visited was 46. were 47. blew watched
一、按要求变换句型。
1.a new bike for 2.Did read 3.What's doing 4.Why don't you n't spend 6.Where were my going 7.Did I any 8.I don't think she is Lily's sister. #39;t do
10.How does look like
11.They didn't read English last night. Did they read English last night? Yes,they did./No,they didn't. What did they do last night?
二、用所给动词的正确时态填空：
1. watches 2. go 3. plays 4. has 5. are 6. is waiting 7. have 8. are getting 9. come, stand 10. is coming 11. goes 12. am writing
13. are going to work/will work 14. are going to /will go, is 15. is going to rain
16. will be 17. will be 18. were 19. will see 20. is raining 21. get, got 22. Could 23. were 24. went 25. will/shall ring, get 26. smoke 27. didn't go, was 28. looks 29. is sleeping 30. are swimming