1. (2020九上·金东期末) 用方框中所给词语的适当形式填空。每词限用一次。

wool     fair     silent    simple    give up

1. （1） The purple sweater on the shelf is made of
3. （2） The textbook explains grammar and clearly.
5. （3） There is nothing but in the big house at night.
7. （4） Sally failed so many times but she neverhope.
9. （5） Teachers are supposed to be to all their students.