同义句转换。

1. You are too young to go to school.

    You are _____ _____ _____ you can't go to school.

2. Welcome to China in spring, summer, autumn or winter.

    Welcome to China in _____ _____.

3. Can I help you?

    _____ _____ _____ I can do for you?

4. When she calls me, I'll tell you at once.

    I'll tell you _____ _____ _____ she calls me.

5. It isn't meaningless, I think.

    I _____ think it's _____.