Exercise 13. Express the prohibition with mustn't and lack of necessity with don't (doesn't) have to.

Examples: It is unnecessary for him to stay late at the lab. He doesn't have to stay late at the lab.

He is not allowed to be late for work. He mustn't be late for work.

a

1.  It is unnecessary for him to show all these slides.

2. You are not allowed to miss the seminars.

3.  It is unnecessary for this man to say who he is.

4. She was not allowed to talk much, and liked listening to me while I told her all the things that had ever happened to me.

5.  You are not allowed to speak Russian in class.

6. It is unnecessary for you to do this exercise written.

7. In the circumstances, therefore, it is unnecessary for the committee to address the remaining arguments on admissibility raised by the state party.

8.  It is unnecessary for him to answer my question.

b

1. It will be quite unnecessary for me to come here.

2. He was not allowed to read or write or smoke, but just had to walk about, and the time hung heavily on his hands.

3. The Swiss Guard are not allowed inside the archives.

4. Uh, I told Lauren it was completely unnecessary for her to ask you when I'm perfectly capable of asking you myself.

5. He is not allowed to speak sitting down.

6. It is unnecessary for her to do this work alone.

7. I'm not allowed to be here.

8. It's unnecessary for me to say I'm an old man.