Question

My uncle lives＿＿＿＿116 Changhe Street. His room is ＿＿＿＿the sixth floor.

A．at； on

B．to； at

C．on； in

D．of； to

Answer 1

A

在相对小的地点或门牌前用at；房间“在第几层”用“on... floor”。