In 1776 Adam Smith wrote that it is young people who have “the contempt of risk and the presumptuous hope of success” needed to found new businesses.
who have
with
having
who are those with
who are the ones to have
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A correct
固定强调句式结构， it is ...who..., eg: It is the boy who broke the windows. 如果用b选项的话it 无指代对象
好误导啊，这不是强调句型，强调你把it is who去掉是一个完整的句子，在这个例子里就不是了。
是形式主语，还原后Young people who xxx is needed to found xxx, is 做谓语的
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.然后“ ”是什么样的呢？具体描述“”是被创办business所需要的。
若选B，with做伴随状语，则it无指代
B:with作伴随状语，细分了一下年轻人；与文意要表达的具有这样特质的年轻人意思上有一点差异；
固定强调句式结构， it is ...who..., eg: It is the boy who broke the windows. 如果用b选项的话it 无指代对象登录 或 注册 后可以参加讨论
C为啥不对呢。
选C的话 it is 就要去掉登录 或 注册 后可以参加讨论
It is young people (&^%$) needed to do..... (not others needed to do...)
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