()you did it is not known to all

()you did it is not known to all

题目
()you did it is not known to all
A.what B.how
请问为什么选B,不选A
答案
How you did it is not known to all.:)若填 What 的话 应该把句中的it 去掉 :) What you did is not known to all.中 what you did (你做了什么) 是 主语从句 后边应该接谓语isHow you did it (你如何做的it)这...
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