—— I haven’t seen Johnson these days.
—— I think she _______ a conference in Beijing, but I’m not sure.
| A．should be attending | B．might be attending |
| C．could have attended | D．must have attended |
推荐试卷
—— I haven’t seen Johnson these days.
—— I think she _______ a conference in Beijing, but I’m not sure.
| A．should be attending | B．might be attending |
| C．could have attended | D．must have attended |
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