what happened______ your litter dog?I haven't seen it these days A with B in C TO

what happened______ your litter dog?I haven't seen it these days A with B in C of D to what happened______ your litter dog?I haven't seen it these days A with B in C TO What would have happen___,as far as the river bank?5.What would have happened______,as far as the river bank?（2001上海）A.Bob had walked farther B.if Bob should walk farther C.had Bob walked farther D.if Bob walked farther为什么答案选C,希 as soon as Amy saw her husband show up at that moment,she sensed that something had happened______ _______ her husband show up at that moment,she sensed that something had happened what What what what what what! what what? what? what What what What what