With temperature ______ so rapidly, we could not go with the experiment．
| A．fall | B．falling | C．fallen | D．to fall |
I was not _________her presence till she spoke to me.
| A．aware | B．aware about | C．aware of | D．aware to |
The students are forbidden____ , unless they have special passes after 11 p.m. in the school.
| A．to stay out | B．from staying out | C．staying out | D．not to staying out |
When ____ , the library will be open to the public next year.
| A．completing | B．being completed | C．to be completed | D．completed |
Will you drop in at my house this afternoon if ____?
| A．you are convenient | B．you will be convenient |
| C．it is convenient | D．it will be convenient |
She fully____ the humor of her role in the play and made it a great success.
| A．exported | B．explored | C．exploited | D．exploded |