_____ his father came back from work_____ his homework.
Her grandmother __________a lot of suffering when she was ill last autumn.
This supermarket has become popular for its wide of goods that suit all tastes and pockets.
It’s good feeling for people to admire the Shanghai World Expo that gives them pleasure.
---Do you know if Helen is willing to take charge of the project?--- , does it?
Later in this chapter cases will be introduced to readers __ consumer complaints have resulted in changes in the law.