距离2022体育单招考试还有114天,小万陪大家一起努力吧!
The truth, Sir, is that the old man______across the street when my
car hit him.
A. was to walk
B. had been wallking
C. walked
D. was walking
(大家可以在评论区留言出自己的答案噢!)
(昨天的题目在这里,你做对了吗)
[解析]每封信都有3种不同的投法。由分步计数原理可得,5封信共有3×3×3×3×3=3⁵=243种。故选B.
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