It ( ) an od begger ( ) Mary met in he street yesterday

问题描述:

It ( ) an od begger ( ) Mary met in he street yesterday
A was which B was whom
选的是B为什么不是A 强调句

这是强调结构句
A 第二空的which 不能指人(beggar乞丐)有用which作强调句的吗? 还是只能that/who/whom?当被强调部分是【物】时可以用which 如:It is this book which(that ) I bought yesterday.楼下说是定语从句。。。有点搞不清了。那就别到处看 :)请看强调句句型It+ is +被强调部分+ that -从句