They put candles in them so the light shines _________the eyes and the nose.
| A．through | B．from | C．at | D．on |
We often see Betty ____ the old man with his housework.
| A．help | B．to help | C．helped | D．helping |
In our city, _____ middle school students want to work as a teacher in the future.
| A．thousand | B．thousand of |
| C．thousands of | D．two thousands of |
I found _____ necessary to save energy and protect the environment.
| A．that | B．this | C．it | D．one |
________ beautiful these postcards are! Where did you get them?
| A．What a | B．How a | C．How | D．What |
We can’t do well in examinations we study hard in school time.
| A．if | B．and | C．since | D．unless |