题目内容
____has been said before, it is not easy to learn a foreign language.
A. As B. It C. What D. As it
A
as表“正如”,引导非限制性定语从句,代替后面整个主句的意思。
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题目内容
____has been said before, it is not easy to learn a foreign language.
A. As B. It C. What D. As it
A
as表“正如”,引导非限制性定语从句,代替后面整个主句的意思。