Question

must,shouldn't ,might,would.
1)A:Did any one inviteann to the party?
B:I don't know.She....I'm not sure.
2)A:Did any one see you?
B: No,but I.....if it hadn't been so dark.
3)A:has someone kepaired this machine?
B:well,it's working again so it....


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Answer 1

1. Might

2. Would

3. Must