Modals：練習問題

Choose the correct modal verb to express a request for permission that is more formal than 'can':

______ I use your dictionary for a moment, Mr. Wong?

Which modal verb correctly completes this sentence about a logical deduction?
"The lights are off and there is no one at the door. They ______ be out for dinner."

Which modal verb best fits the sentence to express a very low possibility or a hypothetical situation?

If we leave right now, we ______ just make it to the cinema before the movie starts, but I doubt it.

Select the correct modal verb to fill in the blank:
"I have lost my house keys. ______ you please help me look for them?"

Select the modal verb that best expresses a suggestion for a future action:
"It's getting late and we are tired. ______ we take a taxi home instead of walking?"

Fill in the blank with the most suitable modal verb to show strong obligation:

You ______ wear a seatbelt when you are driving a car; it is the law.

Identify and correct the modal verb error in the following sentence:

You should not to eat so much junk food if you want to lose weight.

Complete the following dialogue using the most appropriate modal verbs for a deduction and a suggestion:

Amy: I can't find my keys anywhere!
Ben: You (a) ______ have left them in the car. You (b) ______ go back and check.

Read the dialogue below and complete the blanks with the most appropriate modals based on the context of ability and logical deduction.

Jason: I cannot find my house keys anywhere! I (i) ______ have dropped them on my way home.
Sarah: (ii) ______ you remember the last time you saw them?
Jason: I think I had them when I was at the park. Wait, I (iii) ______ have left them in my gym locker because I didn't lock it today.

Choose the most suitable Modal Verb (can, must, should, or may) to complete the school rules and advice below:

(a) Students ______ not run in the corridors; it is a very important safety rule.
(b) ______ I borrow your eraser for a moment, please? I left mine at home.
(c) You ______ eat more vegetables if you want to stay healthy and strong.
(d) Only students with a permit ______ enter the computer room after school hours.