MyfatherisapolicemanandhealwaystellsmethatI

问题详情：

My father is a policeman and he always tells me that I ______________play on the road because it is so dangerous, especially when there is much traffic.

      A. may not   B. could not   C. mustn’t     D. should not

【回答】

C

知识点：情态动词

题型：选择题