词型转换。
1.go(过去式)__________                 2. win(过去式)__________
3.come(过去式)___________              4.is(过去式)_____________
5.were(原形)____________               6.brush(过去式)____________
7.played(原形)____________             8.did(原形)_______________
9.wash(单三)______________              10.watch(单三)_____________