polite requests
be able to / know how to
must not vs. don't/doesn't have to
Correct the mistake
Correct usage
100
Ask your friend to open the door for you.
Would/Could you (please) open the door?
100
Can you give me a ride to work tomorrow? (be able to)
Are you able to give me a ride to work tomorrow? Will you be able to give me a ride to work tomorrow?
100
You _______________ run by the pool. You could slip and hit your head. a. must not b. don't have to c. doesn't have to
a. must not
100
I shouldn't to go to bed so soon, but I'm really tired.
to
100
Invite your friend to lunch.
would, could, can
200
Ask your teacher to repeat what she said.
Would/Could you (please) repeat that?
200
Can you hunt with a falcon? (know how to)
Do you know how to hunt with a falcon?
200
He ___________________ wear sunglasses because he is wearing a hat. a. must b. don't have to c. doesn't have to
c. doesn't have to
200
I am very tired to concentrate in class.
very (too)
200
Give your friend advice: a teacher invited him/her on a date
should, shouldn't, must, mustn't
300
You want to come into your teacher's office. What do you say?
May/Can/Could I (please) come in?
300
Could you eat when you were sick? (be able to)
Were you able to eat when you were sick?
300
I know you are tired, but you ____________ sleep in class. I will give you a zero. a. must not b. don't have to c. doesn't have to
a. must not
300
Please to give me a glass of water. I'm thirsty.
to
300
Tell your friend it's not necessary to stand up when the teacher comes in the classroom.
don't have to
400
You are at your friend's house. You want to use the bathroom. What do you say?
May/Can/Could I (please) use your bathroom?
400
Could you speak English before you came here? (know how to)
Did you know how to speak English before you came here?
400
I ______________ drink coffee today. I'm not that tired. a. must not b. don't have to c. doesn't have to
b. don't have to
400
I can't see anything last night. It was too dark.
can't (couldn't)
400
Tell your friend it is absolutely necessary for her to come to class tomorrow or she will fail.
must, have to, need to
500
Your friend had a baby. You want to see pictures of it. What do you say?
Could/May/Can I (please) see pictures of your baby? Could/Would you (please) show me pictures of your baby?
500
I couldn't find a taxi to get home. (be able to)
I wasn't able to find a taxi to get home.
500
He _____________ drink coffee today. His doctor told him to fast for 24 hours before his appointment.
a. must not b. don't have to c. doesn't have to
500
May you show me your wedding photos please?
May (could, would)
500
Your friend wants to have coffee with a girl he met, but he already has a girlfriend. Tell him that it is a bad idea to have coffee with this new girl.
should, shouldn't
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