1. 用方框中单词或短语的适当形式填空。

none of       some day       far away       alone       in space

1. （1） I'm sure Dick will be successful .
3. （2） The old man feels lonely because all his children live.
5. （3） Do you know how the astronauts live?
7. （4） I need help, but them knows the answer to the question.
9. （5） You'd better not leave your children at home.