Modal and related verbs

Which modal verb is used to express ability in the present?

• A. Could
  

• B. Be able to
  

• C. Can

• D. Must

What is the difference between "must" and "have to"?

• A. "Must" expresses external obligation, while "have to" is based on personal opinion.
  

• B. "Must" expresses the absence of obligation.
  

• C. "Must" is less formal than "have to."
  

• D. "Must" expresses the speaker's opinion, while "have to" is based on rules or laws.

Which of the following expresses strong advice and sometimes includes a warning?

• A. Should
  

• B. Ought to
  

• C. Had better
  

• D. May

Which modal verb is typically used to ask for permission in a formal way?

• A. Can
  

• B. Could
  

• C. Will
  

• D. May

How do we express negative obligation?

• A. You don't have to
  

• B. You mustn't
  

• C. You can't
  

• D. You shouldn't

Which modal verb is used to express the speaker's opinion about something they feel they need to do?

• A. Must

• B. Can

• C. Should
  

• D. Have to

What is the correct form to express a future ability?

• A. Can
  

• B. Could
  

• C. Be able to
  

• D. Will be able to

Which verb form expresses an obligation based on a law or rule?

• A. Have to
  

• B. Must
  

• C. Should
  

• D. Could

Which sentence shows "negative obligation" using "mustn't"?

• A. You don't have to finish your work today.
  

• B. You mustn't steal from the store.
  

• C. You shouldn't eat so much junk food.
  

• D. You can't go outside in the rain.

What modal verb is used to express general permission in the present?

• A. Could
  

• B. Can
  

• C. Must
  

• D. Would