问题
选择题
When he was in trouble, I offered to lend him a hand, but he ________. [ ]
A. has refused
B. would have refused
C. had refused
D. refused
答案
答案：D
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When he was in trouble, I offered to lend him a hand, but he ________. [ ]
A. has refused
B. would have refused
C. had refused
D. refused
答案：D