Question

21. Jeff was ill last week and he ____go out.
needn't
can't
mustn't
couldn't​

Answer 1

Explanation:

Jeff was I'll last week and he can't go out

Answer 2

Answer:

Couldn't

Jeff was ill last week and he couldn't go out.

Explanation:

• Needn't means something not needed
• Can't means not able to do something
• Mustn't means something that s not allowed
• Couldn't means not able to do something.

Here, in the sentence, Jeff was ill. So he was not able to go out.

Therefore, we say he "couldn't" go out.

Hope it helps, friends!!! :)