【单选题】
______there was an epidemic approaching, Mr. Smith ______ the invitation to visit that area.
A.If he knew, would have declined
B.If he had known, would decline
C.Had he known, would decline
D.Had he known, would have declined
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根据网考网移动考试中心的统计,该试题:
9%的考友选择了A选项
4%的考友选择了B选项
2%的考友选择了C选项
85%的考友选择了D选项