---Mr. Yang,everything is ready for the meeting.

---I’m sorry, I________ to tell you the meeting had been put off.

1. A.
   shouldphone
2. B.
   ought tohave phoned
3. C.
   need tophone
4. D.
   shouldhave been phoned

---Mr. Yang, everything is ready for the meeting.

---I’m sorry, I ___to tell you the meeting had been put off.

A. should phone                           B. ought to have phoned

C. need to phone                          D. should have been phoned