题目内容
What would have happened ________, as far as the cliff?
| A.if Bob has walked farther | B.if Bob should walk farther |
| C.if Bob had walked farther | D.if Bob walked farther |
C
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题目内容
| A.if Bob has walked farther | B.if Bob should walk farther |
| C.if Bob had walked farther | D.if Bob walked farther |