6.The local government cut down their costs ______ 30 percent.
　　A. at       B. by      C. for       D. with
　　7.I’m reading his ______ novel.
　　A. best-selling       B. best-sold        C. best-sale       D. best-sell
　　8.It’s rude of you to shout _______ the room.
　　A. beyond     B. through       C. across       D. over
　　9.People are more likely to stay _______ 30 miles of _______ they were born.
　　A. in … where      B. at … what       C. within … what       D. within … where
　　10.After searching for half an hour, she realized that her glasses ______ on the table all the time.
　　A. were lain      B. had been lain      C. have been lying     D. had been lying

 

6.B    7.A    8. C    9. D    10.D