求大神做下英语定语从句六题!

求大神做下英语定语从句六题!
24.Do you work
near the building ____ colour is yellow?
A.that B.
which C.its D.whose
25.In the dark
street,there wasn’t a single person ____ she could turn for help.
A.whom B.
who C.to whom D.form whom
26.Is this school
____ we visited three years ago?
A.the one B.which C.
that D.where
27.Is this the
school ____ we visited three years ago?
A.the one B.where C.
in which D./
28,How many
students are there in your class ____ homes are in the country?
A.whose B.who C.
whom D.which
29.Alice received
an invitation from her boss,____ came as a surprise.
A.it B.
which C.that D.he
30.The train was
crowded and I had to get into a carriage ____ already seven other people.
A.when there were B.which there were C.that there were D.where there were