25．—There’s somebody at the door, Mr. Wilson.
—Tell_______I’m out.
| A．it | B．him | C．them | D．somebody |
When we got to the airport, the plane was starting _____.
| A．taking off | B．to take off | C．take off | D．to taking off |
The river _____ are covered with trees is very long.
| A．whose bank | B．of which banks | C．whose the banks | D．the banks of which |
-----Tim, please don’t talk in class.
-----Pardon?
-----I _____ talk in class.
| A．tell you don’t | B．tell you not to | C．told you didn’t | D．told you not to |
When Jack arrived, he learned Mary _____ for almost an hour.
| A．had gone | B．had set off | C．had left | D．had been away |
The speaker mentioned some writers and books _____ were known to us.
| A．that | B．which | C．/ | D．who |