She _______ fifty or so when I first met her at a conference.
A: had been
B: must be
C: has been
D: must have been
A: had been
B: must be
C: has been
D: must have been
举一反三
- Prof. Smith ______ forty or so when I first met him at the International Peace Conference in Geneva. A: must be B: had been C: must have been D: could be
- He fifty when I met him the first time. A: must be B: must have been C: should be D: should have been
- She _____ fifty or so when I first met her at a conference.
- I would have gone with you，but I _______too tired． A: was B: had been C: must be D: must have been
- I didn' t hear the sound, so I ______ asleep. A: must be B: must have been C: should be D: should have been