We do not know how astronauts can ____ when they spend months in space without the protection of the atmosphere.
A.get off | B.get up | C.get along | D.get in |
We found ________ necessary to protect the environment.
A.it | B.this | C.that | D.what |
-Which would you like, rice or noodles? --_______is OK. I'm hungry.
A.Either | B.Neither | C.Both | D.All |
I don't think it very expensive to buy a family computer here.
-- Really? I'll buy _______ next week.
A.it | B.this | C.one | D.mine |
Lucy knew nothing about it ________ her sister told her.
A.because | B.until | C.if | D.since |
He walked ________ fast for us ________catch up with.
A.so, that | B.such, that | C.enough, to | D.too, to |