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【題目】Since the time humankind started gardening, we _____to make our environment more beautiful.
A.try
B.have been trying
C.are trying
D.will try

A. approachB. way

C. methodD. means

【題目】During the holiday I bought a CD player, _____ was rather reasonable.
A.its price
B.of which price
C.the prices of which
D.whose price

【題目】There is no greater pleasure than lying on my back in the middle of the grassland, _____at the night sky.
A.to stare
B.staring
C.stared
D.having stared

【題目】Poor boy! His _____ looks and _____ hands suggested he was very afraid.
A.frightful; trembling
B.frightened; trembling
C.frightening; trembled
D.frightened; trembled

【題目】You will never gain success________ you are fully devoted to your work.
A.when
B.because
C.after
D.unless

【題目】We discussed the problem three or four times，but could come to no ______.
A.end
B.conclusion
C.result
D.judgment

【題目】— I've prepared all kinds of food for the picnic.
—Do you mean we_____ bring anything with us?
A.can't
B.mustn't
C.shan't
D.needn't

【題目】The teacher asked a difficult question, but Tom managed to ____ a good answer.
A.put up with
B.keep up with
C.come up with
D.go through with

A. proveB. proven

C. provingD. proved