Parents complain their children are behaving unreasonably _____children consider their parents to be old-fashioned.
---- Putting on a happy face not only helps us make friends but also makes us feel better. ----.
The art show was _______ being a failure; it was a great success.
_____ by the advances in technology, many farmers have set up wind farms on their land.
Don't worry if you don't understand everything, the teacher willthe main points at the end.
It is obvious to the studentsthey should get well prepared for their future.