You _______ drink alcohol, you can have a soft drink.
don't have to
mustn't
Jake _______ work on his computer yesterday because it wasn’t working.
could not/ couldn't
Phelps ___________ swim when he was born
can't
couldn't
can
could
_____ you understand these instructions?
Can
You are driving too fast; I think you ______ slow down.
should
First of all, you ________ be careful who you talk to.
must not
should
When you go on the Internet, there are some rules you ______ follow.
must not
should
You ______ throw away old appliances. Instead, you ______ donate them to charity.
shouldn't, can't
shouldn't, should
should, shouldn't
shouldn't, must
She _____ send an email until yesterday.
couldn't
can't
Phelps couldn’t swim when he was born but he _________ swim really fast now.
could
couldn't
can
can't
The school rules say that we _____ use our cell phones in the classroom.
must not/ mustn't
Cats cam climb trees but elephants _________ do it.
couldn't
could
can
can't
You _____recycle old appliances.
should
must not
John ______ play video games; he doesn't have a computer.
couldn't
can't
I _____ pick you up after school because I am working late tonight.
can't
Kim ______ write very fast, so she does her homework on the computer.
could
can
can't
couldn't
Secondly, you _______ give out your personal information when you’re chatting online because you don’t really know the other person.
should
must not
Kate needs to go out and do more things. She _______ spend every weekend playing computer games and chatting online.
should not/ shouldn't
Your hands are dirty; you _____ wash them.
should
It's optional. We _____ to go if you don't want to.
don't have to
mustn't
When the traffic light is red, you ______ go on.
mustn't
don't have to
He _____ use a laptop, he doesn't know how.
can
can't
You ________ spend all your money when you go shopping.
must
couldn't
shouldn't
should
You ____ touch electric sockets with wet hands.
don't have to
must not
Danielle _____ skate at the age of six.
can't
could
can
If you like, you _____ use my computer.
have to
can
You _______ turn off your cell phones during the test.
should
must
shouldn't
must not
I _______ go out right now. I am doing my homework!
cannot/ can't
Finally, you _______ open strange emails.
must not
should
Also, you _______ only visit safe sites that your parents say are OK to go on.
must not
should
You _____ respect your teachers.
should
can
could
must
_____ you play tennis when you were younger?
Could
You ______ be careful with knives.
don't have to
must
“You don’t look well. You _______ see a doctor.”
should
must not
must
shouldn't
We _____ always have a ticket when we travel on the bus.
must
I like Sundays because I _____ go to work.
mustn't
don't have to
You _____ touch wires.
must not
must
Children ____ play with electricity.
shouldn't
can't
We ______ go to bed early on Saturdays. Mom lets us stay up a bit later.
don't have to