Module 7 Computers Unit 1一、单选题1.Can you tell him how _______ the document?A. printB. to printC. printingD. prints2.—_______ do I put my football?—Behind the door.A. WhenB. WhatC. WhereD. How3.Please ________ the lights when you go out.A. turn downB. turn upC. turn onD. turn off4.K...