To our ______, the result of the experiment is much better than we expected.
| A．regrets | B．relief | C．disappointment | D．sorrow |
The teacher told us that light ______ faster than sound.
| A．traveled | B．had traveled | C．is traveling | D．travels |
If better use is ______ of your spare time, you will make still greater progress in it.
| A．spent | B．made | C．taken | D．thought |
This is her only request that the room ______ after being used.
| A．be cleaned | B．is cleaned | C．will be cleaned | D．would be cleaned |
— I don’t know ______ Mr. Green will come to see us.
— He will help us with our English.
| A．why | B．when | C．how | D．where |
—I apologize to you for my rudeness yesterday, Mary?
—Never mind, and I think ______ of it.
| A．a little | B．little | C．much | D．highly |