大月每月有（ ）天，小月每月有（ ）天。
31，30
400个零件中有10个不合格，这批零件的合格率为______%．
Make sentences with the words. 组词成句。
1. like play they to badminton
2. the young is woman who
3. get at I up six
4. your live does uncle where
