He used to ____his teaching when he was young.
| A．devote to | B．be devoted to | C．devoting to | D．being devoted to |
Mrs. Smith has three sons, two _____ have gone to college.
| A．of them | B．of whom | C．of who | D．of which |
If you don’t go swimming this afternoon, she won’t go. _____.
| A．Nor shall I | B．Neither do I | C．So shall I | D．I do neither |
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 |