The question occurred to me ______ we were to get the machine needed.
don’t think you can work out the maths problem____her help.
My uncle lives____116 Changhe Street. His room is ____the sixth floor.
The trees ___front of the house are ___the charge of Mr. Li.
I made the coat ___my own hands. It was made___hand, not with a machine.
—— Do you go there ___bus? —— No, we go there ___a train.