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Timothy Ray Brown, the first man cured of HIV, initially opted against the stem
Timothy Ray Brown, the first man cured of HIV, initially opted against the stem
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2024-09-07
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问题
Timothy Ray Brown, the first man cured of HIV, initially opted against the stem cell transplant that _____ history.
选项
A、could have later made
B、should have made later
C、might make later
D、would later make
答案
D
解析
主句谓语opted against用了一般过去时,而选项中都包含时间副词later“后来”,故判断空格处应使用过去将来时,故选D。could have done表示“过去本来能做某事却没有做”,should have done表示“过去本该做某事却没有做”一般不跟later连用,首先排除。根据常识.我们知道干细胞移植是有名的疗法,C项的might表示可能性很小,也不符合要求,可排除。
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