What does your father do-He is a doctor and he works ______ a hospital.

I’m sorry I ______ my exercise book at home. —Don’t forget _______ it to school tomorrow, please.

How soon will you start your journey —I’m not sure. I haven’t decided_____.

In order to make Dandong more beautiful, more trees and flowers ________ every year.

ing to our teacher, we should takedetailed notes in class because they are more __________ than our memory