Modals of Obligation: must / have to / should

should

If you are sightseeing in New York, you [must /should] buy a MetroCard which gives you cheaper travel on the subway and buses. Select the correct form.

everyone would have to speak

In the future, perhaps [everyone must speak] English and Chinese. Write the correct form (or the same if it is ok).

He has to work

My father is a taxi driver and [he should work] nights. Write the correct form (or the same if it is ok).

mustn't

When talking to American people, you [shouldn't/don't have to] ask them about their salary. Some people might think this is rude. Select the correct form.

must

You [have to / must] have a visa to enter the country. Write the correct form (or the same if it is ok).

have to/must

You [have to/must] wear a seat belt at all times in a car. Select the correct form.

have to

You [have to/should] go on a ferry to visit the Statue of liberty. You can't go by bus. Select the correct form.

don't have to

You [musn't / don't have to] pay to visit most museums and art galleries. Entrance is usually free. Select the correct form.

must/have to

You [must/have to] answer some questions when you go through immigration. Select the correct form.

mustn't

You [mustn't / don't have to] drive on the left! Here we drive on the right! Select the correct form.

mustn't

You [mustn't/don't have to] smoke in any public building. It is prohibited by law. Select the correct form.

You should to go home

You don't look well. [You should to go] to home. Write the correct form (or the same if it is ok).

should

Your [must/should] always try to arrive on time for an appointement or meeting. Americans are very punctual. Select the correct form.

Do you have to

[Do you have to] wear a suit and tie at work? Write the correct form (or the same if it is ok).

I didn't have to cook

[I didn't have to cook] last night because we went our for dinner. Write the correct form (or the same if it is ok).

I had to

[I must] go to work by bus yesterday. My car was being repaired. Write the correct form (or the same if it is ok).

People shouldn't use

[People must'n use] their mobile phones when they're talking to you. Write the correct form (or the same if it is ok).

You mustn' play

[You don't have to] play football here. It says 'no ball games.' Write the correct form (or the same if it is ok).