问题 填空题
Read and write.(写出下列动词的过去式)
1. have _____
4. clean _____   
7. do _____  
10. read _____   
13. swim _____   
2. watch _____   
5. play _____  
8. cook _____     
11. study_____
14. learn _____
3. wash _____   
6. visit _____   
9. Go _____     
12. fly _____                                       
15. sing _____
答案

l. had  2. watched  3. washed  4. cleaned  5. played

6. visited 7. did 8. cooked  9. went  10. read

11. studied   12. flew   13. swam   14. leamed   15. sang

单项选择题
单项选择题