Central Modal Auxiliaries

Children should be taught that they ...... with their mouth full. It's impolite pure and simple.
1. mustn't talk
2. must talk
3. don't have to talk
4. have to talk
You ...... in a church. People will think you're a madman.
1. mustn't shout
2. must shout
3. don't have to shout
4. have to shout
Martin, you ...... to me. I know the truth.
1. don't have to lie
2. mustn't lie
3. have to lie
4. must lie
The executive assistant ...... another computer as she can access the platform from any station inside the building.
1. doesn't have to use
2. has to use
3. mustn't use
4. must use
The actors ...... the scene anymore. They've done a great job rehearsing it already.
1. don't have to practise
2. have to practise
3. mustn't practise
4. must practise
Karen, you ...... out dressed in such a light sweater. It's freezing outside. Put on some warm clothes, will you?
1. mustn't go
2. don't have to go
3. have to go
4. must go
The accountant ...... any more funds. If he does, report him to the police right away.
1. mustn't embezzle
2. has to embezzle
3. doesn't have to embezzle
4. must embezzle
My grandfather's cat ...... mice anymore because he feeds her every day.
1. doesn't have to catch
2. has to catch
3. mustn't catch
4. must catch
You ...... in the premises, Helen. If the supervisor sees you smoke here, you'll be reprimanded for sure.
1. mustn't smoke
2. must smoke
3. don't have to smoke
4. have to smoke
My sister ...... the shopping every week, but usually she volunteers and goes to the shops anyway.
1. doesn't have to do
2. mustn't do
3. has to do
4. must do
The retired chaplain ...... the poor anymore, but he still contributes his part and takes care of the less privileged ones.
1. doesn't have to help
2. mustn't help
3. has to help
4. must help
The hens ...... in such cold rooms, or they'll die soon.
1. mustn't be kept
2. must be kept
3. don't have to be kept
4. have to be kept

Central Modal Auxiliaries

Quiz