两个有关定语从句的题

问题描述:

两个有关定语从句的题
一,Is this the factory__a lot of students visited yesterday?
A.the one B.which C.who D.whom
PS:
二,I still remember the sitting-room__my mother and I used to sit in the evening.
PS:这道只要告诉我是where还是that/which

D
定语从句缺宾语,主语是a lot of students 谓语visit 是及物动词,所以缺宾语,用关系代词 that/ which /或省略
where
where my mother and I used to sit
中sit 是不及物动词,sit in the room , 因此用where