B.who am
非限制性定语从句,who指的是I,所以be动词要用am
C.where
先行词city在从句中的成分是状语,如下
there is a beautiful lake in the city
所以用关系副词
A.which
先行词city在从句中的成分是主语
The city has a beautiful lake
所以用关系代词
B.who am
非限制性定语从句,who指的是I,所以be动词要用am
C.where
先行词city在从句中的成分是状语,如下
there is a beautiful lake in the city
所以用关系副词
A.which
先行词city在从句中的成分是主语
The city has a beautiful lake
所以用关系代词