[单项选择]The final examination is coming up soon. It's time for us to ______ our studies.
A. get down to
B. get out
C. get back for
D. get over

[单项选择]The final examination is coming up soon. It's time for us to ______ our studies.
A. get down to
B. get out
C. get back for
D. get over

[单项选择]At (no time) a student' s (cheating) on a (final) examination (can) be condoned.
A. no time
B. cheating
C. final
D. can

[单项选择]At (no time) a student's (cheating) on a (final) examination (can) be condoned.
A. no time
B. cheating
C. final
D. can

[单项选择]Although it takes up much of his spare time, Mr. Smith finds stamp collecting extremely _________.
A. progressive
B. encouraging
C. rewarding
D. challenging

[单项选择]The bill is______at any time up to next Friday.
A. payable
B. commercial
C. luxurious
D. enormous

[单项选择]I think it's time that she makes up her mind.（）
A. think
B. that
C. makes
D. mind

[单项选择]The roommate waked me up and said," It's high time we ______."
A. get up
B. had got up
C. got up
D. will get up

[单项选择]From time to time we must look up words ______.
A. the meanings of those we do not know
B. whose meanings we are not familiar
C. that we do not know their meanings
D. whose meanings we do not know

[单项选择]

Text 1
Mark Twain once observed that giving up smoking is easy. He knew, because he’d done it hundreds of times himself, Giving up for ever is a trifle more difficult, apparently, and it is well known that it is much more difficult for some people than for others. Why is this so
Few doctors believe any longer that it is simply a question of will power. And for those people that continue to view addicts as merely "weak", recent genetic research may force a rethink. A study conducted by Jacqueline Vink, of the Free University of Amsterdam, used a database called the Netherlands Twin Register to analyse the smoking habits of twins. Her results suggest that an individual’s degree of nicotine dependence, and even the number of cigarettes he smokes per day, are strongly genetically influenced.
The Netherlands Twin Register is a voluntary database that is prized by geneticists because they allow the comparison of identical twins (who
A. it may have negative effects on related studies.
B. it is unreliable so far.
C. it may provide an excuse for nicotine addicts.
D. it could undermine the anti-smoking movement.