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Read the sentences below and choose the alternative that...

Read the sentences below and choose the alternative that best explains the meaning of the modal verb in each case.


1- She must be at home, because all the lights are on.

2- You should check your work carefully before handing it in.

3- They can speak three different languages fluently.

4- When we were children, we could spend hour playing outside.


A

(1) expresses suggestion; (2) expresses present certainty; (3) expresses permission; (4) expresses impossibility in the past.


B

(1) expresses strong logical deduction; (2) expresses advice; (3) expresses ability; (4) expresses past possibility/ability.


C

(1) expresses possibility; (2) expresses future prediction; (3) expresses deduction; (4) expresses present ability.


D

(1) expresses obligation; (2) expresses permission; (3) expresses future certainty; (4) expresses prohibition in the past.