这几句语法帮我看看有无语病错误
题目
这几句语法帮我看看有无语病错误
a.It is you who were wrong.
b.It is you who can be wrong.
c.It can be you who were wrong.
d.It can be you who are wrong.
e.Could it be my pen that he has taken?
以上几句应该都是强调句吧?有错误地方请帮我更改
因为我觉得看似很对 却有人说错
答案
a 应为 It was you who were wrong.
b 正确
c 应为 It might be you who were wrong.
d 应为 It may be you who are wrong.
e 正确
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
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