用所给单词的适当形式填空。
1. My _____(big) problem is that I can't memorize the English new words.
2. His life_____(change) a lot in the last few years.
3. My grandfather used _____(swim) in the river when was young.
4. Would you mind my_____(shut) the door?
5. It often (take) us two hours_____(do) our homework every day.
6. I used to be afraid of _____(speak ) in front of a group.
7. I am very hungry, because I_____(not have) my dinner yet.
8. We find it easy_____(learn) English well.
9. Don't give up_____( try) , you will make it in the end.
10. He didn't _____(use) to like tests, but now he likes them very much.
1. biggest 2. has changed 3. to swim 4. shutting 5. takes,to do
6. speaking 7. haven't had 8. to learn 9. trying 10. use