Sam __________ phone his mum every evening when I was on the school trip,
has to
had to
have to
Liz and Tony _____________paint their new apartment before they move in.
has to
must
have to
Children _____________ eat more fruit and vegetables to stay healthy,
must
have to
should
You ___________ eat the pizza in the fridge. It's for your dad.
don't have to
mustn't
needn't
Dee Noi and Dee Lek __________ do the dishes. I've already done for them.
don't have to
doesn't have to
mustn't
I can't go out now. I ________ study for the test.
have to
must
had to
I _______ cook today. We're eating out.
don't have to
don't must
shouldn't
He _______ smoke. It's bad for his health.
shouldn't
don't have to
doesn't have to
We ________ exercise three times a week.
should
shouldn't
should to
"must" suggests that ____________________________.
the speaker feels the obligation to do something.
obligation comes from someone else.
have to or has to suggest that _________________________.
obligation comes from someone else.
the speaker feels that the obligation to do something.
You ___________ throw rubbish in the river.
mustn't
don't have to
needn't
My son _______ get up early yesterday.
will has to
has to
had to
We ________ feed the animals in the zoo.
mustn't
needn't
don't have to
I ______ work extra hour next week.
will have to
have had to
have to
I've run out of milk. I ________ forget to buy some tomorrow.
don't have to
mustn't
must
