Norman Bethune worked ____ in China as a doctor and saved many Chinese soldiers.

Mr. Green has come up ______ a good idea to help hischildren get on well _______ each other.

is it from your home to the clothes store— Three kilometers.

It’s standard practice for a company like this one______ a security officer.

I’m sorry I _______ my football at home.—That’s all right. Don’t forget _______ it here tomorrow.