Aunt Zhou reminded us ______ the danger of ________ in that river.A of;swim B with;swim C of;swimming D with;swimming
—I’ll go for a school trip. —I hope you have a good trip. —__________
—Thank you very much. —__________.
There’s________ interesting pay phone next to_______ post office.
Toronto is a city in________.
What’s Jim doing over there? He’s_______ his friends.