问题
选择题
We have to get up at 7:15 to morrow morning,_____ we will be late for the 7:40 train. [ ]
A. before
B. or
C.if
D. so
答案
答案：B
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We have to get up at 7:15 to morrow morning,_____ we will be late for the 7:40 train. [ ]
A. before
B. or
C.if
D. so
答案：B