He is sitting __________ the classroom.
#48172
A
at the front
B
in the front of
C
in front
D
in front of
推荐题目
There is a big tree ______ the house.
#50720
A
in the front of
B
at the front of
C
in front
D
in front of
His flat is ________the _______floor in a building on a busy street.
#49549
A
in, nine
B
in, ninth
C
on, nine
D
on, ninth