Question

The wrong you've done him is terrible, for ________ you should make an apology t

The wrong you've done him is terrible, for ________ you should make an apology to him, I think.
A. this
B. which
C. what
D. that

Answer 1

答案B
此空是非限制性定语从句引导词，make an apology to sb for sth.是习惯性说法，因此B项正确。