John as well as Jack （） just been back from an important meeting.
A: have
B: has
C: had
D: must have
A: have
B: has
C: had
D: must have
举一反三
- It _____ at Christmas that John Smith gave Mary a handbag. A: must have B: will be C: might have been D: may have had
- The general manager, as well as his secretary, to be present in the meeting. A: have agreed B: has agreed C: are agreeing D: have been agreed
- I<br/>____ that the meeting has been canceled. A: just hear B: just heard C: will just hear D: have just heard
- 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
- He did not attend the meeting yesterday. He______ill. A: must be B: must have been C: should be D: should have been