Помогите с английским (даю 40 балов)

.1 Soldiers … obey their commander’s orders.

a) Must

b) Can

c) May

d) Will

2. I’ll come at 7 tomorrow. – No, you … come that early, we start much later.

a) Mustn’t

b) Don’t have to

c) Needn't

d) Can’t

3. How … be so rude with your teacher?

a) You could

b) You might

c) Might you

d) Could you

4. … I ask you how old you are?

a) May

b) Could

c) Might

d) Must

5. You … smoke on the plane – it’s against the rules.

a) Shouldn’t

b) Can’t

c) May not

d) Mustn’t

6. I can do it myself. You … bother.

a) Mustn’t

b) Shouldn’t

c) Needn’t

d) Wouldn’t

7. You … be so friendly to every person you meet.

Needn’t

b) Shouldn’t

c) Mustn’t

d) Can’t

8. Someone’s at the door. It … be Sharon, she promised to come.

a) Can

b) Would

c) Might