If you don’t go swimming this afternoon, she won’t go. _____.
________ when your ticket has been checked will you be allowed to take the plane.
Sometimes we can see more than 60 students are ________ in a small school bus, which can easily cause traffic accidents.
— I heard the voices, but couldn’t ________ what they were saying. — Why not go over? It won’t do you any harm.
Who ________ a lady like Susan Boyle, once an ordinary woman in Scotland, would achieve overnight success at Britain’s Got Talent Show?
The mother, ________ in the kitchen, totally forgot the medicine on the table within the child’s reach.