—Jack fell off the ladder yesterday,but he is all right now. —What a lucky dog! He________ himself badly.A.should injureB.might injureC.should have injuredD.could have injured
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(2011·北京高考)—Where are the children? The dinner's going..
(2011·北京高考)—Where are the children? The dinner's going to be completely ruined.—I wish they______always late.A.weren'tB.hadn't beenC.wouldn't beD.wouldn't have been