写出下列动词的过去式。listen → listened
1. read → _______________
2. is → _______________
3. do → _______________
4. wash → _______________
5. go → _______________
6. play → _______________
7. clean → _______________
试题答案
1. read 2. was 3. did 4. washed 5. went 6. played 7. cleaned