单项选择题
The one（）me is writing on the blackboard（）the classroom.
A．behind ；in front ofB．behind；in the front ofC．at the back of；in front ofD．at the back of ；in the front of
单项选择题 Do you know who lives in the building （）there is a wall?
单项选择题 Who do you think the teacher will （）the question？
单项选择题 They were（）little children that they didn’t know what to do.
