SAT2006.5真题语法问题1.Thecandidatecalledformedicalinsurancereform,buttomeheseemedlessinterestedintheplightoftheuninsuredcitizensthaninwhetherenoughisregisteredtovote.enoughis怎么改啊?2.Becausehisexperiencein

Question

SAT2006.5真题语法问题
1.The candidate called for medical insurance reform,but to me he seemed less interested in the plight of the uninsured citizens than in whether enough is registered to vote.
enough is怎么改啊?
2.Because his experience in the naval medical corps had been rewarding,Bob applied to medical school after he was discharged from the navy
rewarding为什么是对的
3.Africa's Kanem empire,after enduring for over a thousand years,is believed to have fallen into decline when trade centers shift outside its boundaries.
shift有什么问题啊?

Answer 1

1.enough这里指的是前面的citizens,所以谓语用复数.改成enough are
2.rewarding本身是一个形容词：有利可图的,有奖赏的
3.shift的时态错误,应为shifted 当贸易中心转移到国外的时候,显然是过去时.
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