C

C

B

1. We ....must........ go to school on time.
2. We......mustn't.........make noise in the library.
3. He ....must........ listen to the teacher carefully.
4. We.....mustn't........walk on the grass.
5. Students....must........practice speaking English every day.
6. You.......mustn't........play soccer in the street.

What did your sister do at the party?

There/many/books/are/in/my/school/

There are many books in my school