用所给单词的适当形式填空。

1. They have dinner at six ________ (clock) in the afternoon.

2. I ________ (eat)  breakfast at 8:00 in the morning.

3. We must brush our ________ (tooth) everyday.

4. Can you tell ________ (he) the name of our teacher?

5. He takes a bus ________ (go) to school.