My brother wants to work in the factory which _________ now.
A．is building B．has been built C．is being built D．is to be built
He told me about the news in a voice.
A．amazing; surprising B．amazed; surprised
C．amazing; surprised D．amazed; surprising
It is a paradox（自相矛盾） that in a rich country there should be many poor people.
A．such; such B．such; so C．so; so D．so; such
We are living in an age many things are done on computer．
A．which B．that C．whose D．when
Although knocked down by a car, he managed to ______ to his feet.
A．stand B．rise C．run D．struggle
The sun heats the earth, ___________ is very important to living things.
A．that B．what C．which D．where
