we had read your letter the true state of affairs.
| A．It was until; that we understood |
| B．It was not until; that we understood |
| C．Until; did not we understand |
| D．Not until; we understand |
—Ouch! You hurt me!
—I am sorry. But Iany harm. Ito drive a rat out.
| A．didn’t mean; tried | B．don’t mean; am trying |
| C．haven’t meant; tried | D．didn’t mean; was trying |
He didn’t make __________ clear when and where the meeting would be held.
| A．this | B．that | C．it | D．these |
Dogs have a very good ___________ of smell and are often used to search for survivors in an earthquake.
| A．sense | B．view | C．means | D．idea |
Only in this way will you get your valuable ideas __________ ; or your time will be wasted.
| A．over | B．across | C．away | D．down |
The young teacher always has a lot of methods to make her lessons lively and interesting, _______ all her students.
A. agreeing to B. turning to C. seeing to D appealing to