Has Mr Read studied Chinese _______ 2004?—Yes. He has studied it _______ six years.[ ]

Cindy is ______six-year-old girl and she has become famous since her _______first appearance in the show Where Are We Going, Dad?

Please give me a piece of paper______.

Could you please _______ the window ?It’s too cold outside.

Mr. Green didn’t post the letter _________. He asked his son to do it for him.