My brother play chess when he was.
can
must
could
had to
I do nothing in this situation.
can
can't
must
mustn't
He's only a baby. He even walk.
can't
mustn't
shouldn't
couldn't
Yesterday she miss her exam because she was ill.
could
had to
should
have to
If you don't feel well, you take some medicine.
can
could
should
shouldn't
I'm afraid I give you a lift today.
can
can't
mustn't
must
I hope that she keep it a secret.
will be able to
will have to
can
must
I'm carrying some heavy bags. you open the door?
Shall
Can
Could
Do you have to
I had a terrible stomachache. I go to school.
could
couldn't
hadn't to
can't
If you can't do this exercise, you ask your teacher to help you
must
could
should
mustn't
You always remember to bring everything you need for classes.
can
could
had to
must
You ... eat a lot of sweets.They are bad for your teeth.
can't
mustn't
shouldn't
couldn't
We ... to do this now. We can do it later.
don't have
doesn't have
didn't have
won't have to
I find my keys.Have you seen them?
can't
mustn't
haven't
don't have to
I don't understand. Why do you do all these things now?
must
should
had to
have to
We be late yesterday because we wrote the test.
mustn't
shouldn't
didn't have to
couldn't
You be careful crossing the road.
can
must
mustn't
should
Hurry up! We be late.
mustn't
don't have to
couldn't
could
You eat a lot of fruit and vegetables.
can
must
should
could
Tony to finish his project today.
can
must
has
have