—What class are they having?—Math. Their math teacher is _____ the classroom. 
#48064
A
in the front of
B
in front of
C
on
D
behind
推荐题目
Sydney Opera House ______ a usual theatre and it symbolizes Australia.
#47741
A
likes
B
doesn’t like
C
isn’t like
D
looks like
The police found the lost car _____.  
#48414
A
by mistake
B
by accident
C
with mistake
D
in accident