We ___________ work overtime on Saturdays.
have to
don't have to
do have to
doesn't have to
She ________ use such horrible language.
can
should
mustn't
must
We _________ focus on getting new business this month.
can't
need to
can
has to
You _____________ come to the meeting next week.
doesn't need to
mustn't
can't
don't need to
She ________________ worry about her grades. She's a great student.
doesn't need to
mustn't
can't
need to
