几道初三英语题.(有关定语从句的）

题目

几道初三英语题.(有关定语从句的）
1.It was this reason _______he was late for school.
A.that B.which C.because D.because of
2.There are many boys here,none of_______ like singing.
A.who B.whom C.that D.which
3.Betty said the work would be done by October,_______I doubt.
A.it B.that C.when D.which

答案

A 不是解释说明原因的.是强调句.
B 人 宾格 用whom
D 这里which指代的是整个句子