题目内容：

根据提示写单词
1.There have been great ________(变化） in our hometown.
用所给词正确形式填写
2.Who often _________(carry) water for the old man?
3.I will not go to the cinema with you,because I ________(see)the film twice.
4.Why do not you use the key __________(open)the door.
5.Last night he washed the dishes before ________(watch) TV.
6.We should help him _________(collect)more useful cards.
7.My hometown ___________(change)a lot these years.