根据句意用所给单词的适当形式填空。
【小题1】 It is ______________(nature) for a bird to fly.
【小题2】 It is ____________(polite) to ask a woman her age in western countries?
【小题3】Our English teacher likes reading ____________(educate) books.
【小题4】 I like ____________(lie) on the grass in the sun in spring.
【小题5】 Do you think noise _____________(pollute) is a terrible problem?

根据句意，用所给单词的适当形式填空。
【小题1】We all know ______________ (pollute) water does harm to our health.
【小题2】I have read five                  (twelve) of this book.
【小题3】If you are in a blue mood, you can do your hobbies to cheer                ( you) up, boys.
【小题4】To tell you the                 (true), I felt sad while you were away. 
【小题5】The children heard the                 (frighten) shout and looked at each other in fear.

词汇运用(每小题1分,共5分)

根据句意,用所给单词的适当形式填空。

1. My father and my uncles are all ___________ (policeman).

2. That is the ______ (begin) of the garden tour.

3. Are the doctors and nurses in the hospital ______ (friend) to you?

4. The koalas often sleep during the day and eat  ______(leaf) at night.

5. Mary enjoys _________(watch) soccer games very much.

B. 用所给单词的适当形式填空，使句子正确，意思连贯。

用所给单词的适当形式填空

1.There was an _________ (argue) happened between Tom and Jack last night.

2. Lucy never _________ (have) a walk after supper every day.

3. The people in Iraq keep fighting for their own ________ (free).

4. The teenagers have to work hard because of the _________ (press) from their parents.

5. They tried their best to find the ______ (solve) because they want to solve the problems.