As we know, England is ______ European country and Singapore is ____ Asian country.
Only when the work is done ______be able to go back home.
__________ should not be allowed to go out alone at night.
—I think teenagers should _______ to drive. They are not serious enough.
I fell down and broke three of my teeth. I wonder how many times I have to come here to get my broken teeth _______.
—What do you usually do in the morning? - I often practice__________ English.