完成句子，使改写后的句子完整，并与原句意思相符，注意每空只填一个单词。

1. The box is so heavy that I can't lift it.

     It is _______ _______ heavy box _______ I can't lift it.

2. How beautiful Zhanjiang is!

    _______ _______ _______ city Zhanjiang is!

3. The girl had to look after her grandmother when her parents were out.

    The girl had to _______ _______ _______ her grandmother when her parents were out.

4. They plant a lot of trees in our hometown every year.

    A lot of trees _______ _______ in our hometown every year.

5. How about having some fish for supper today?

    _______ _______ _______ some fish for supper today?