A．用介词in，at，on填空

1．Dick and Tony often go to school ________ 7:30 every day.

5．There are a lot of p________ in the park on Sunday.

4．Many students like playing basketball on the p________ after class.

3．Yao Ming is my favourite sports p________.

2．I would like to i________ my friends to my birthday party.

1．Let's go to the c________. Spiderman Ⅲ is on.

18．-Thank you for your help.

- ________.

A．No thank　 B．You are welcome　　 C．That's right