It's not raining. You [.............] to take your umbrella
doesn't have to
can't
don't have to
Students [..........] use a red pen when taking an exam
have to
mustn't
can
You [.....] share your password with anybody
mustn't
need to
have to
should
You can wear your own clothes, you [......] wear uniforms at this school
have to
don't have to
mustn't
Sue has had that book for a long time. She [.....] return it to the library
must
can't
doesn't have to
He's not a kid anymore. He [.....] read fast
can
mustn't
Hey! What are you doing? You [.....] smoke here
mustn't
can
Your hamster has depression! You [........] take care of him
mustn't
don't have to
can't
have to
You [....] study more if you want to pass the test
don't have to
mustn't
must
I [......] swim when I was younger, but now, I can!
mustn't
couldn't
