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China'seconomicreformisaimedatseperatingenterprisesfromthegovernment.Tthasbeenimplementedforalmost20years,butbreakthroughs.ahavebeenmadeyetbhaveyettomakechaveyettobemadedtohaveyetmade做出选择并写出选择

题目详情
China's economic reform is aimed at seperating enterprises from the
government.
Tt has been implemented for almost 20 years,but breakthroughs_____.
a have been made yet
b have yet to make
c have yet to be made
d to have yet made
做出选择 并写出选择的理由。
▼优质解答
答案和解析
选c
前半段讲的是 中国经济重组的目的是为了分离政府行为和商业行为,即减少政府干预,
tt 不知道是什么,但后半段说实施20年来 还(空格)突破
根据题意,空格应添入 “未有”
所以 c,yet 的一个特殊用法,记住就好
语法上来说,
breakthroughs have been made,要用被动语态,这个你应该同意吧?
所以b,d 排除
而a have been made 是肯定,yet只能用于否定句,所以排除
或者说,根本就没有a 这种说法