问题
选择题
— John, how did your English exam go?
— I thought I ____, but in fact I came in the top 10% in the class.[ ]
A. should have failed
B. couldn' t have failed
C. might have failed
D. mustn' t have failed
答案
答案：C
远中邻
面银汞合金补物完好，叩诊（-），温度刺激试验（
），牙周检查正常。