题目内容
His attempts to invent a new machine________nothing.
A.resulted in B.led to C.caused D.contributed to
A
本句意为“他试图发明一种新的机器,结果一无所获”。这里强调结果,所以result in合适;lead to/cause意为“导致”;contribute to意为“有助于”,不符合语境。
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All his attempts to unlock the door were , because he was using the wrong key.
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A.in return |
B.in vain |
C.in doubt |
D.in time |