该练习是初三语法复习中动词时态的过关练习。值得一看。
I. 把下列动词变成第三人称单数，现在分词，过去式和过去分词。
1.help ________________ _________________ ________________ ________________
2.make _______________ _________________ ________________ ________________
3.ride ________________ _________________ ________________ ________________
4.get ________________ _________________ ________________ ________________
5.swim ________________ _________________ ________________ ________________
6.leave ________________ _________________ ________________ ________________
7.know ________________ _________________ ________________ ________________
8.play ________________ _________________ ________________ ________________
9.guess ________________ _________________ ________________ ________________
10.teach ________________ _________________ ________________ ________________
11.fix ________________ _________________ ________________ ________________