用所给词的适当形式填空

1. Everyone knows that giving is better than _____ (receive) .

2. The little boy got more and more _____ (interest) in that computer game.

3. There are too many people at the finishing line. I wonder who is the _____ ( win) of the boys'100-metre race.

4. Kate and Tina are afraid of living in the country, because there are too many _____ (mouse) .

5. -How much is this T-shirt?

    -100 yuan. But when I bought mine, it _____ (cost) me 120 yuan.