Ability
Obligation, Prohibition
Advice/ suggestion
Permission, possibility
Sentences
100

Which modal verb do we use to express ability in the present?

Can

100

Which modal verbs do we use to express obligation?

must, have/has to

100

Which modal verb do we use to give advice?

Should/ought to

100

Which modal verbs do we use for ability?

Can, could

100

Clue :
Mobile phones are strictly forbidden during the TOEFL Exams. 

By using Modal Auxiliary Verbs:
You ________ use mobile phones during the TOEFL Exams.

Mustn't / Can't

200

Which modal verb do we use to express ability in the past?

Could

200

Which modal verbs do we use to express prohibition?

mustn't

200

Can ought to be used to express ability?

No

200

Which modal verbs do we use to express our opinion?

should/ought to

200

Clue :
You are not allowed to enter the supermarket without a shirt on.

By using Modal Auxiliary Verbs: 
You ________ enter the supermarket without a shirt on.

Mustn't 

300

Is it possible to use could for present abilities?


No, it is not.

300

Is 'should' a modal verb to express obligation?


No, it isn't

300

Can should be used with ¨to¨?


No.

300

Is must a modal verb to express possibility?


No, it isn't

300

Clue: 
Tomorrow I have a very important exam so I am going to study a lot.

By using Modal Auxiliary Verbs:
I ____  study a lot because I have a very important exam tomorrow.


must

400

True or false: can is more polite than could


False

400

Can must be used with ¨to¨?


NO.

400

True or false: Shouldn't is used for prohibition

false

400

True or false:

Do the Modal Auxiliary Verbs have certain things in common between them? 


True

400

I think it ____ rain this afternoon because the sky is dark and cloudy.

a) may

b) can

c) must

a) may

500

Choose the correct modal verb: She _______ find any books on Geology at the library right now.

a) can't

b)couldn't

can't 

500

Choose the correct modal verb: 

You ______ obey the traffic lights.

a) have to 

b) should

c) can

have to

500

Choose the correct modal verb: 

 _______ I  go to the doctor?

a) should 

b) might

c) would

should

500

Choose the correct modal verb: It _______ be faster to drive by car than bus.

a) may

b) can

c) could

a) may

500

Clue:
I advise you to revise modal verbs before your test tomorrow. 

By using Modal Auxiliary Verbs:
You _____ revise modal verbs before your test tomorrow. 

a) can

b) should

c) musn't


b) should