6. 写出下列动词的过去式：
1. tell _______ 2.teach._______
3.stay_

6. 写出下列动词的过去式：
1. tell _______ 2.teach._______
3.stay_______4.read_______
5.speak_______6.write_______
7.use_______8.do_______
9.begin_______10.go______

1.told 2.teach 3.stayed 4. read 5.spoke 6.wrote 7.used 8. did 9. began 10. went