Without the earth’s atmosphere to protect them, astronauts can be exposed to intense radiation from the sun, ____ them at risk of cancer.
_______he has got a chance, he might as well make full use of it.
That art center is _______ used to be a factory, ______ millions of tractors were produced.
It is ________ Beth to drink so much; I wonder if she is all right.
There is no light in the room. They must have gone to the lecture.__________?
If you keep on your research, you’ll find out the result _______.