In this institution, a medal, together with a prize of a certain sum of money, ________ does best in science and technology every two years.
| A．is given to whoever | B．are given to anyone |
| C．are given to who | D．is given to whom |
I wish I _____a car．It would make life so much easier.
| A．have | B．had | C．had had | D．will have |
It was when I arrived home _____ I realized I had left my bag in the library.
| A．what | B．because | C．that | D．until |
You can complain, but I doubt _____ it’ll make any difference．
| A．if | B．what | C．that | D．how |
I won’t be able to answer any phone all the afternoon．I_____________ a conference．
| A．am attend | B．was attending |
| C．will be attending | D．will have attended |
The old couple have been married for 40 years and never once ___________ with each other．
| A．they had quarreled | B．they have quarreled |
| C．have they quarreled | D．had they quarreled |