What would have happened______ as far as the river band?A.Bob had walked fartherB.if Bob

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What would have happened______, as far as the river band?

A.Bob had walked farther

B.if Bob should walk farther

C.had Bob walked farther

D.if Bob walked farther

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。