Fill in the blanks choosing the right word or words from the brackets.

1. On a holiday you ………………………… go to office.

a) must

b) need not

c) have to

2. He is grown up and he ………………………….. know what to say and what not to say.

a) ought to

b) must not

c) have to

3. Please do not disturb me. I …………………………… finish a lot of work.

a) must not

b) need not

c) have to

4. You ……………………….. follow the rules and regulations.

a) must not

b) should

c) need not

5. We ………………………….. know how a machine works before beginning to operate it.

a) need not

b) must

c) has to

6. I ………………………… have cooked so much food. Nobody was hungry.

a) need not

b) don’t need to

c) must not

7. You …………………………… have said such things to her.

a) should not

b) ought not

c) would not

Answers

1. On a holiday, you need not go to office.

2. He is grown up and he ought to know what to say and what not to say.

3. Please do not disturb me. I have to finish a lot of work.

4. You should follow the rules and regulations.

5. We must know how a machine works before beginning to operate it.

6. I need not have cooked so much food. Nobody was hungry.

7. You should not have said such things to her.