改错Tom and(A)Mary took their(B) shoes in case of (C)they decided to go dancing
题目
改错Tom and(A)Mary took their(B) shoes in case of (C)they decided to go dancing
Tom and(A)Mary took their(B) shoes in case of (C)they decided to go dancing
答案
C 错误.
in case of 改成 in case.
in case of是为介词短语,其后不能加状语从句;
in case既可以单独使用,也可引导状语从句.
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.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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