---6---
1: Speak to David.
2: Come to the board please.
3: Do not open the window.
4: Do not close the door.
5: Do not speak loudly in the classroom.
6: Eat something if you are hungry.
---7---
1: I often watch tennis matches of TV.
2: Does he run in the park on Sundays?
3: Maria can't speak Chinese.
4: We usually don't go skiing in Italy.
5: There is a new park in my neighbourhood.
6: Students may not play football in the classroom.
