初三定语从句,

初三定语从句,
1.Is this the factory __________ he worked ten years ago?
A.that
B.where
C.which
D.the one
17.This is the school _____ Mr.Smith once taught.
A.in that B.when C.where D.there
18.Have you visited the house _____ the famous scientist was born?
A.where B.in that C.that D.which
19.The factory _____ Mr.Li used to work was closed last week.
A.when B.where C.that D.which
20.Do you still remember the day _____ we first met?
A.that B.when C.what D.on that
21October 1,1949 is the day _____ we’ll never forget.
A.when B.that C.where D.in which
23.October 1,1949 was the day _____ the People’s * was founded.
A.which B.when C.where D.in which
Is this the shop _____ sells children’s clothing?
A.which B.where C.in which D.what
这是别人的号，坐等啊