Jack could have avoided that terrible car accident, but he ________ careful enou

Jackcouldhaveavoidedthatterriblecaraccident,buthe________carefulenough.A.isnotB.hasn’... Jack could have avoided that terrible car accident, but he ________ careful enough.
A. is not
B. hasn’t been
C. was not
D. hadn’t been 展开

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zyb_ylj
2013-09-10 · TA获得超过1856个赞

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答案C

这题考查时态，句意是：杰克本来可以避免这场可怕的车祸，但是他太不仔细了。从could have done看出是“过去本可以做…却没有做”，那不够仔细是过去的事实，所以选C

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Jack could have avoided that terrible car accident, but he ________ careful enou

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