【题目】 --Jack fell off the ladder yesterday, but he is all right now.
--What a lucky dog! He ______ himself badly.
A. should injure B. could have injured
C. should have injured D. might injure
在线课程【答案】B
【解析】
试题分析∶考查虚拟语气。句意∶杰克昨天从梯子上掉下来了，但是他现在都没事。多幸运啊，他本来应该伤的很重的。could have done…本可以做而没做。故选B。
考点∶考查虚拟语气