按要求转换句子，每空一词。

1. Would you like to answer the questions?（改为同义句）

    ________ ________ ________ answer the questions?

2. I can buy some snacks.（改为一般疑问句）

    ________ ________ buy __________ snacks?

3. I got to their home, but they weren't in.（改为同义句）

    They weren't ________ ________when I got there.

4. He is going to look after his grandma. （改为同义句）

    He is going to _________ _________ _________his grandma.

5. You need to exercise more to keep fit.（改为同义句）

    You need to________ more ________to keep ________.