Is there a football field? — Yes, _______! It’s the football field.

Dad, Bobby _______hitting me.－ Bobby,_______ doing that.

I have _______ food at home.

At present , the terrible foggy haze（雾霾）weather has influenced our normal life badly . So our government should _____ to reduce the air pollution.

_______ I go on a trip to Shanghai?— Yes, you may.