–I wonder how much you charge for your service. --The first two are free____ the third costs $30.
The teacher entered the classroom, _____.
Let’s have another look, ___?
I __ brushing my teeth twice a day.
Dr, Robert Bell went to New York , bought some books ___ his daughter. A. visiting B. to visit C. and visited D, visited
His cousin will stay in Beijing till his aunt ___ well.