问题
选择题
What would have happened,_______, as far as the river bank? [ ]
A. Bob had walked farther
B. if Bob should walk farther
C. had Bob walked farther
D. if Bob walked farther
答案
C
What would have happened,_______, as far as the river bank? [ ]
A. Bob had walked farther
B. if Bob should walk farther
C. had Bob walked farther
D. if Bob walked farther
C