In our class there are 50 students，half ___________ wear glasses．
| A．in whom | B．in them |
| C．of whom | D．of them |
Hearing the bell ringing, out .
| A．rushing the children | B．rushed the children |
| C．were rushing the children | D．the children rushed |
—Can I smoke here?
—No, at no time in the library.
| A．permits smoking |
| B．does smoking permit |
| C．smoking is permitted |
| D．is smoking permitted |
So far, what we have done is destroying the earth; only by changing we live we save it.
| A．that; will | B．how; can |
| C．what; do | D．which; shall |
at the news that his eyes rained tears.
| A．So was Tom sad | B．So sad was Tom |
| C．So sad Tom was | D．So Tom was sad |
West of the city , which provides a lot of job opportunities for the local people.
| A．a factory lies | B．does a factory lie |
| C．is lying a factory | D．lies a factory |