It () have been Jack who left the umbrella here as he is the only one that brought his umbrella to the classroom.
A: could
B: might
C: ought to
D: must
A: could
B: might
C: ought to
D: must
举一反三
- I had my umbrella when I got on the bus, but I have not got it now. I ____ it on the bus. A: must leave B: must have left C: might leave D: could leave
- I could find my umbrella nowhere. I ______ it in the taxi. A: should leave B: must have left C: could leave D: should have left
- He ( ) his umbrella on the train. A: forget B: leave C: forgot D: left
- He must have had an accident, or he ________ here then. A: would be B: had been C: should have been D: could be
- He must have had an accident, or he ______ here then. A: would have been B: had been C: should be D: could be