ABILITY
REQUEST/PROBABILITY
OBLIGATION
ADVICE
HAVE TO- DON'T HAVE TO
100

____ you please help me with my homework?

Can you please help me with my homework?

100

Look at those clouds! It __________ rain.


may

should

must

Look at those clouds! It may rain.

100

It's getting late. I    _______   go now. 

can 

may

 have to 

would rather

It's getting late. I    have to  go now.

100

A: I have a terrible headache!

B: You ____________ go to the doctor's.

You should go to the doctor's.

100

We _____________ wear uniforms at school, so we can wear anything we want!

We _____________ wear uniforms at school, so we can wear anything we want!

200

I ____________ run that fast when I was 6 years old.

I couldn't run that fast when I was 6 years old.

200

__________bring me a glass of cold water?

Could you 

Can't you 

Would you mind 

Why don't you

Could  you bring me a glass of cold water? 

200

You  ___________     disturb him during his work! 

can't

must

mustn't

You mustn't disturb him during his work!

200

You ______________ study a lot if you want to be successful.

have to

should

could

You should study a lot if you want to be successful.

200

. The windows look clean. You   ________    wash them.

. The windows look clean. You   don't have to     wash them.

300

I have to go to a business dinner tomorrow night so I ___________ (not) come to the party. I'm very sorry.

I have to go to a business dinner tomorrow night so I  cannot come to the party. I'm very sorry.

300

Don't ring the doorbell when you get there. Maria's little baby ____________       sleeping. 

must be 

should be

 may be 

may not be

Don't ring the doorbell when you get there. Maria's little baby may be      sleeping.

300

She looks pretty sick. I think she ________ go to a doctor. 


must

should

will

She looks pretty sick. I think she should go to a doctor.

300

You don't look well. You  __________     see a doctor. (Advice) 

are to 

could 

need to 

should

You don't look well. You  should    see a doctor.

300

 He cannot go to the park with us today because he     ___________  write a report. 

should

 must

 has to 

could

 He cannot go to the park with us today because he     has to write a report.

400

Catch me if you (can or could )!

Catch me if you can!

400

______________lending me your CD player for a couple of days? (Request) 

Can you 

Could you 

Would you 

Would you mind

Would you mind lending me your CD player for a couple of days? (Request)

400

Kevin lived in Italy for six years, so he ___________ speak Italian quite well. He will help you with your homework.

Kevin lived in Italy for six years, so he must  speak Italian quite well. He will help you with your homework.

400

You've been driving all day. You ________ be exhausted! 

must

should 

can

You've been driving all day. You must be exhausted!

400

You ______________      go there with me. I can handle it; it's not difficult.

You  don't have to  go there with me. I can handle it; it's not difficult.

500
I think i ( can, could or can't) help you learn math if you study hard.

I think i can help you learn math if you study hard.

500

Whose car is this? – It __________ be Anton's. I think I saw him driving a red car like this one.

Whose car is this? – It must be Anton's. I think I saw him driving a red car like this one.

500

When the car drove into the lake, one of the passengers  ____________ open the door and (had to , should) be rescued.

When the car drove into the lake, one of the passengers  couldn't open the door and had to  be rescued.

500

I saw that pen this morning. It ________ be around here somewhere. 

must

can

would

should

I saw that pen this morning. It must be around here somewhere.

500

I have to/must/should go to a business dinner tomorrow night so I  cannot come to the party. I'm very sorry.

I have to go to a business dinner tomorrow night so I  cannot come to the party. I'm very sorry.