Playing on a frozen sports field sounds like a lot of fun. Isn't it rather risky, ____?
| A．either | B．also | C．though | D．too |
With these words, he ______a wide-mouth jar from his pocket and set it on the table in front of him.
| A．pulled out | B．checked out | C．stuck out | D．dropped out |
Don't mention that at the beginning of the story, or it may _____ the shocking ending.
| A．give out | B．give off | C．give up | D．give away |
Gun control is a subject_______ Americans have argued for a long time.
| A．of which | B．with which | C．about which | D．into which |
He played the computer games till late last night,____ early this morning.
| A．more than | B．other than | C．rather than | D．or rather |
Mr. Wang made up his mind to devote all he could______ his oral English before going abroad .
| A．improve | B．to improve | C．improving | D．to improving |