写出下列动词的过去式。learn → learned
1. eat → _______________
2. have → _______________
3. take → _______________
4. sing → _______________
5. dance → _______________
6. go → _______________
7. study → _______________
试题答案
1. ate 2. had 3. took 4. sang 5. danced 6. went 7. studied