一、根据句意及所给首字母提示,在空格上填写正确的单词。
1. Some of my friends watch TV three or four t____ a week.
2. I’m t____; I want something to drink.
3. I think good food and exercise may help you to study b____.
4. Grandpa is pretty healthy b____ he takes a walk every day.
5. I have q____ a lot of homework to do this evening.
6. In N____ America, some students also walk or ride bikes to school.