Only when he was punished by the police ____to follow the traffic rules strictly.
问题描述：
Only when he was punished by the police ____to follow the traffic rules strictly.
A.he began B.began he C.had he begunD.did he begin
答
D
only when .倒装句
首先是倒装 排除 a b
在他被警察惩罚的时候 他才开始遵守
被罚显然发生在遵守规则之前,被罚的时候肯定他没已经遵守了交通规则,所以不用完成时