II单项选择(共15小题，每小题1分，满分15分)
21. His suggestion ___ the meeting ____ was turned down.
A. that; be put off B. whether; would be put off C. which; be put off D. that; put off
22. The doctor ___, the worried mother became calm.
A. had been sent for B. had been asked C. having been sent for D. calling in
