根据句意，用所给词的适当形式填空。

1. There is nothing important in today's newspaper.  How about       (listen) to the radio?

2. Jenny gave her father a special gift on Father's Day.She made it by       (she).

3.        (million) of movie fans like watching Avatar. It's really fantastic.

4. Kathy's work is to look after       (baby). She is a babysitter.

5. The traffic is very heavy these days in our city. People should drive     (careful) on the roads.