He is a teacher. He has been a teacher ____ 1990.
#46441
A
in
B
until
C
since
D
For
推荐题目
That’s very kind _________you _________me.
#47160
A
of; help
B
of; to help
C
to; to help
D
for; helping
There is a big tree ________ the classroom.
#48535
A
in front of
B
at the front
C
in the front of
D
in front
