_______the door, please. —Come in please. The door _______.

Why are so many northern Chinese visiting SoutheastAsia countries recently —They are trying to get a ___shelter from the coldweather in winter.

Please remember _______ the computers down when you leave the office.

I think eating more vegetables is good _______ our health.— Yes, I agree _______ you.

is necessary to all. After all, it is the United States and China, as the two largest economies in the world, that ________ most from a peaceful and stable Asia-Pacific.