Here again, you have to complete a sentence. this time use these verbs:
must should shouldn't might would
1. did anyone clean the windows?
no. they .. should have been cleaned but they weren't.
2. a: did anyone invite ann to the wedding party?
b: i don't know. she - i'm not sure.
3. a: did anyone see you?
b: no, but i if it hadn't been so dark.
4. a: has someone repaired this computer?
b: well, it's working again so it
5. a: did someone throw those old books away?
b: yes, but it was a mistake. they