—The winter holiday is coming, but I don’t know where to go to relax myself.

—Why don’t you consider _________to Hainan?

A．going

B．go

C．to go

D．gone

方程x²=x（x-2）的解为（　　）

A．x=1

B．x₁=0，x₂=1

C．x=0

D．x₁=0，x₂=-1