It was cold outside but the door wouldn’t stay shut, so I put a chair _____ it.
| A．against | B．above | C．behind | D．Near |
-Why are you still here? Everybody has gone to attend the lecture by the president.
-Oh, I ____ about it!
| A．didn’t inform | B．hadn’t been informed |
| C．haven’t informed | D．wasn’t informed |
I don’t think David could have done such a stupid thing last night, ____?
| A．did he | B．didn’t he |
| C．do I | D．don’t I |
Measures must be taken to prevent pollution ____ happily.
| A．from we live | B．for us to live |
| C．us living | D．from our living |
. Lucy found one of her friends had been ____ after she finished the invitations to her wedding party.
| A．taken out | B．put out |
| C．picked out | D．left out |
As a famous public figure, you have a duty to ____ yourself responsibly, especially in public places.
| A．carry | B．conduct |
| C．guide | D．operate |