Question

this is the school_______we visited three days ago A.where B./ C.when D.what

解释要简单易懂千万不要说那些主谓宾定状之类的

Answer 1

B
1、This
is
the
school.
2、We
visited
the
school
three
days
ago.
3、将两句组合:
直接连接:This
is
the
school
we
visited
the
school
three
days
ago.(the
school
在同一个句子中出现两次，第二个应当用代词替代)
语法合并:This
is
the
school
we
visited
(which/that)three
days
ago.
语法调适:This
is
the
school
(which/that)we
visited
three
days
ago.
语法规则:如果关系代词在从句中充当宾语，可以省略。
因此，This
is
the
school
we
visited
three
days
ago.