She always come to our help when we get into trouble ____ she is very busy.
When the manager came in,the workers pretended________hard on their machines.
—Michael is one of the top students in our class.—________,he cheated in the last exam.
He can________$ 3,000 a year by writing stories to support a family of three people.
On April 1st the westerners like to play________on each other but they make sure that no one is hurt.
—How would you like to be paid,________cash or________check?—Neither.I want to invest the money in your business.