问个英语选择题This factory is quite different from _____it was two years ago.A that B what C all that D how选b 问下A为什么不对

问个英语选择题This factory is quite different from _____it was two years ago.A that B what C all that D how选b 问下A为什么不对
问个英语选择题
This factory is quite different from _____it was two years ago.
A that B what C all that D how
选b 问下A为什么不对

问个英语选择题This factory is quite different from _____it was two years ago.A that B what C all that D how选b 问下A为什么不对
这里what引导宾语从句,并且在从句中充当表语,而that引导宾语从句时,在从句中不充当成分,所以就是B了.

夲句from后面没介词宾语，后面从句没表语，故只能选what (=the place that....)