Teachers recommend parents_____their children under 12 to ride bicycles to school for safety.
— Have you ________ how much the trip will cost? —I’m working on it; just have a little patience.
.I invited him to dinner, but he___ my invitation with thanks.
The population of this city ,forty percent of which_____, ______ 15% in the last three years
—Guess what? Tom has failed in the exam ____ second time. —How come? He is ___ second to none in English in our class.
The train is running ______120 kilometres an hour.