问题
选择题
We may find that learning a foreign language does not have to be ______learning our mother tongue, but can in fact be as easy.
A．twice harder as
B．as twice hard as
C．twice as hard as
D．as twice hard
答案
答案：C
这题考查倍数的表达，倍数+as adj as的用法，A项应该是twice harder than，C、D项都是顺序错了，选C。