30. As we watched the panda, we stood still, ______ to one another.
| A．dared hardly to whisper | B．hardly daring to whisper |
| C．dared not to whisper | D．not dared whisper |
The other scientists ______ to her ideas with a mixture of criticism and silence.
| A．agreed |
| B．reacted |
| C．approved |
| D．commented |
The country itself didn't have enough gas because of the war，so the government decided to ________ its gas supplies to other countries.
| A．hide away |
| B．cut off |
| C．insist on |
| D．break up |
The students all wear the same uniform, so it’s hard for me to ______ my son among them.
| A．bring out |
| B．pick out |
| C．pick up |
| D．bring up |
Your room is always ______. You should get it tidied.
| A．at a loss |
| B．in danger |
| C．in a mess |
| D．in order |
I admired my English teacher. I can remember very few occasions ______ she stopped working because of ill health.
| A．that |
| B．when |
| C．where |
| D．which |