1 . There is no point in buying this washing powder, because this kind of cloth ________ (wash) easily. （所给词的适当形式填空）

2 . Your composition________（read）beautifully. Is it the one I saw you write yesterday? （所给词的适当形式填空）

3 . With a lot of homework ________ (finish), the sleepy boy can't go to sleep as he wishes.（所给词的适当形式填空）

4 . She will tell us why she feels so strong that each of us has a role ________(play) in making the earth a better place to live in. (所给词的适当形式填空)

5 . Do you know why glasses of this kind made in this factory _____________(wear) so comfortably? (所给词的适当形式填空)

6 . A freshly baked cake ________ (not cut) easily. （所给单词适当形式填空）

7 . Directions：Complete each sentence with the proper form of the word given in the bracket.
1. We ________(talk) in the room when the light suddenly went out.
2. —What’s that noise?—Oh, I forgot to tell you. The new machine ________(test).
3. In the past two decades, researches ________(expand) our knowledge about sleep and dream.
4. Your pen, though not very expensive, _________(write) smoothly.
5. Shortly after we ________(seat), a waiter came over to our table with a smile.