Marie _____a restless person. she kept moving from country to countryA must be B must have been 答案为B 我只知道must have been用表示对过去的推测 怎么这句陈述的话也用呢A为什么不能用呢 求解释谢谢
问题描述：
Marie _____a restless person. she kept moving from country to country
A must be B must have been
答案为B 我只知道must have been用表示对过去的推测
怎么这句陈述的话也用呢
A为什么不能用呢 求解释
谢谢
答
虽然可以用 A ,但从句 she kept moving from country to country 的 kept 是过去式,所以选
must have been 表示对过去比较正确.