10. A____ you can see, we also look different in some ways.

9. We both have black hair, but m____ is shorter than hers.

8. I don’t like this book； give me a____ one.

7. Children mustn’t play in the street. It’s very d____.

6. In N____ America, some students also walk or ride bikes to school.

5. I have q____ a lot of homework to do this evening.

4. Grandpa is pretty healthy b____ he takes a walk every day.

3. I think good food and exercise may help you to study b____.

2. I’m t____; I want something to drink.

1. Some of my friends watch TV three or four t____ a week.