I didn' t hear the sound, so I ______ asleep.
A: must be
B: must have been
C: should be
D: should have been
A: must be
B: must have been
C: should be
D: should have been
举一反三
- He fifty when I met him the first time. A: must be B: must have been C: should be D: should have been
- I ___ him the answer ___ possible, but I was so busy then. A: could tell, if it had been B: must have told, were it C: should have told, had it been D: should have told, should it be
- He did not attend the meeting yesterday. He______ill. A: must be B: must have been C: should be D: should have been
- I didn't tell her the truth,but I her. A: ought tell B: must have told C: must tell D: should have told
- Somebody ______ here only this morning. A: must be B: can be C: must have been D: should have been