That was not the first time he_____ us.
问题描述:
That was not the first time he_____ us.
a.betrayed b.had betrayed c.has betrayed
说明原因 和
答
选B,绝对没错,因为主句是that was.一定要注意,那是一个was,所以从句就要变成过去完成时态喽