中国大学MOOC: It must have rained yesterday evening, _____ it?
举一反三
- It must have rained yesterday evening, _____ it? A: mustn’t B: needn’t C: didn’t D: hasn’t
- It must have rained yesterday, _____ the ground is wet.
- She ______ watched the film with her friends yesterday evening, but she was busy to go with them. A: should have B: had C: must have D: has
- He must have come here yesterday evening, ______ he A: did B: has C: haven't D: didn't
- It ____ just now. The playground is dry. A: can't have rained B: can have rained C: mustn't have rained D: must have rained