The chairman thought _____ necessary to invite Professor Smith to speak at the meeting.
| A．that |
| B．it |
| C．this |
| D．him |
Greatly moved by her words, __________.
| A．tears came to his eyes | B．he could hardly hold back his tears |
| C．tears could hardly be held back | D．his eyes were filled with tears |
The population of many Alaskan cities has ______ doubled in the past three years.
| A．as great as | B．as many as | C． more than | D．larger than |
---In the past ten years, there have been many changes in family life.
--- Are these changes ______?
| A．better or worse | B．for the good or for the bad |
| C．for best or for worse | D．for the better or for the worse |
His sister had become a teacher , ______ was what he wanted to be.
| A．who | B．whose | C．that | D．which |
They ______ on the program for almost one week before I joined them, but still no good results _______ so far.
| A．had worked ; come out | B．have worked ; came out |
| C．had been working ; have come out | D．have been working ; have come out |