问题
填空题
写出下列动词的过去式。
go → went
1. study → ________________
2. fly → ________________
3. see → ________________
4. swim → ________________
5. read → ________________
6. is → ________________
7. walk → ________________
答案
1. studied 2. flied 3. saw 4. swam 5. read 6. was 7. walked