问题 填空题 写出下列动词的过去式。1. eat 2. think 3. buy 4. lose _____ _____ _____ _____ 5. go 6. teach7. do 8. is _____ _____ _____ _____ 答案 1. ate 2. thought 3. bought 4. lost5. went 6. taught 7. did 8. was
