There are six floors ______our school building. Our class is ______ the third floor. 
#46412
A
in, on
B
in, in
C
on, in
D
on, on
推荐题目
Mrs. Tayor argued __________ her husband ________ their son.
#49807
A
with; of
B
to; for
C
to; about
D
with; about
You will be ______ if you walk alone in the forest. There are many ______ snakes and carnivores (食肉动物) in it.
#46640
A
danger; dangerous
B
dangerous; endangered
C
in danger; dangerous
D
endangered; in danger