6. Our products are displayed in Stand B22, ____ you will find me during office hours.
　　A. when B. Which C. that D. where

　　7. We cannot see any possibility of business _____ your price is on the high side of the prevailing market trend.
　　A. which B. Since C. that D. though

　　8. Over a very large number of trials, the probability of an event _____ is equal to the probability that it will not occur.
　　A. occurring B. Occurred C. occurs D. occur

　　9. “They’re the best team I’ve seen thus far,” says ____ men’s basketball coach Larry Brown.
　　A.American’s B.US C.the USA D.United State of America

　　10. Many Americans do not understand why there is so much international criticism of the US policy on ____ change.
　　A. atmosphere B. Sky C. weather D. climate

　　6.DBABD