“I don’t understand what you are saying,” she said, with a _____ expression on her face.
| A．puzzling | B．puzzled | C． puzzle | D．puzzlement |
Mr. Andrew taught his students how to develop the basic skills in the physics class, ______ everything through jokes and experiments.
| A．to explain | B．explained | C．explaining | D．explains |
Mr. Bryan is a/an _______ secretary in our office, for he is able to do tasks successfully, without wasting time or energy.
| A．effective | B．efficient | C．flexible | D．sufficient |
There was enough evidence to prove that the explosion in Robinson’s house _______ the leak of natural gas.
| A．resulted in | B．resulted from | C．led to | D．contributed to |
The Browns have six children altogether. It is obvious that ________ little money the present job brings Mr. Brown can hardly support so large ________family like that.
| A．/; the | B．a; the | C．a; / | D．the; a |
________, I believe, and you will find that he is very outgoing.
| A．Having a talk with Tom | B．Given a talk with Tom |
| C．If you have a talk with Tom | D．One talk with Tom |