题目内容
The wrong you have done to him is terrible, for _____ you should make an apology to him, I think.
A. that B. which
C. what D. this
B
注意固定词组make an apology to sb.for sth.,所以只有for which正确。A、D选项看似正确,但不能引导非限定性定语从句。
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