1
Have a rest. You ... be tired.
should
have to
had better
must
2
If you want to pass your exam, you ... study harder.
are to
had to
should
can
3
Don't worry ! I ... swim well.
may
might
can
should
4
... you help me out ?
Must
Can
Should
Might
5
I didn't want to do it but I ... .
must
can
had to
could
6
Tim ... lift that heavy box yesterday.
must not
may not
can not
could not
7
If you are in a lot of pain, you ... consult your doctor.
needed to
better
had to
ought to
8
Susan is thirsty, she ... quench her thirst.
must
ought to
needs to
can
9
... you live long.
Can
Could
May
Might
10
... speak in a whisper ?
Must
Should
Can
May