Ex 2:
1.C
2.C
3.A
4,D
5.C
6.D
7.A
8.B

Ex1:
1.Go upstairs,
2.Don't swim.
3.Do your homework.
4.Don't play football in the yard.
5.Brush your teeth.
6.Don't talk during the lesson.
7.Don't feed the animals in the zoo.
8.Read the instructions.
9.Don't to be late for school.
10.Switch off your mobiles.
Ex 2:
1.C
2.C
3.A
4.D
5.C
6.D
7.A
8.B