Mum, would you please buy me an MP5 player? — If you can help do some housework the whole vacation, you ____ have one as a reward.

I _________ $300 for the bike.

Let’s____planting the trees until tomorrow. I think it’s going to rain.

There are ________ of students in our school, but only ______ are girls.

There are _____________ people in the supermarket. It’s so crowded.