Modal verbs (present and future)

You mustn't / needn't eat noisily. It's rude.

• mustn't

• needn't

We must / are supposed to arrive by 10 o'clock, but we can be a bit late.

• must

• are supposed to

In our hotel guests don't have to / shouldn't check out till midday.

• don't have to

• shouldn't

That boy ___ be Luke - he's got blond hair and Luke's is dark.

• must

• can't

• might

This is impossible, it ___ be a mistake!

• might

• may

• must

I'd better answer my phone - it ___ my dad calling.

• can't

• could

• should

I'm not sure, but it ___ be busy in town because the sales are on.

• might

• should

• must

Rewrite the sentence using the word in brackets: They won't let you enter the temple in shorts. (mustn't)

Rewrite the sentence using the word in brackets: It doesn't matter if you don't speak Spanish. (need)

Rewrite the sentence using the word in brackets: Should we leave a tip? (supposed)