You _________ wear a seatbelt while driving. (obligation)
have to
We _________ waste water when brushing our teeth. (prohibition)
can’t
She _________ do her homework before playing. (obligation)
has to
They _________ bring their own lunch; the school provides food. (not necessary)
don’t have to
You _________ speak loudly in the library. (prohibition)
can’t
We _________ turn off the lights to save electricity. (obligation)
have to
He _________ recycle paper and plastic. (obligation)
has to
People _________ throw trash in the ocean. (prohibition)
can’t
Students _________ wear sports shoes for P.E. class. (obligation)
have to
She _________ buy a new book; she can borrow one. (not necessary)
doesn’t have to
You _________ feed the stray animals; they need help. (obligation)
have to
He _________ drive without a license. (prohibition)
can’t
We _________ wear a jacket; it’s warm outside. (not necessary)
don’t have to
You _________ keep your neighborhood clean. (obligation)
have to
Factories _________ dump toxic waste in rivers. (prohibition)
can’t
She _________ turn off the tap while washing dishes. (obligation)
has to
