_ did the students visit last week?

问题描述:

_ did the students visit last week?
a.where b.what c.when d.which

B
还原成陈述句,更好理解
the students visited ...last week.
这里缺少的是谓语动词visit的宾语,既然缺少宾语,肯定是名词
构成动宾结构,就是what
我们逐字看
where 哪里,状语,副词,错误
what 什么,名词,正确
when 什么时间,状语,副词,错误
which 哪一个,定语,错误
答案B
肯定正确
不懂问我