II.               Underline the best answer from each group in italics.

1.               Bookings need/ must be made at least seven days before departure.

2.               You needn’t/ mustn’t go on the beach when the tide’s coming in. It’s very dangerous.

3.               In most developed countries, people mustn’t / don’t need to boil water before they drink it.

4.               I often have to/ must work at the weekend to get everything done.

5.               We’ve been told that we don’t have to/ mustn’t be at work until 10.00 tomorrow.

6.               There’s plenty of time for you to make up your mind. You mustn’t/ needn’t decide now.

7.               When you have time, we must/ have to get together for a weekend.

8.               You mustn’t/ don’t have to look in the closet. Your birthday present is hidden there.

9.               As you worked late yesterday you needn’t/ mustn’t come until 10.00 tomorrow morning.

10.        Employees will have to/ must accept the new conditions or be dismissed.

Of course the first thing I did was to call the police and I mustn’t / didn’t have to wait very long

11.        for them to get there.

12.        You mustn’t / needn’t use the office phone for private calls.

13.        You needn’t / mustn’t have woken me up. I don’t have to I mustn’t go to work today.

14.        Nowadays it needn’t/ mustn’t cost a fortune to own a powerful computer.

15.        I’ve got bad toothache. I must/ have to make an appointment with the dentist.