题目

.提在手中的一条鱼，质量是700g,求鱼受到的重力是多大？（4分）  答案：：7N解析:：G=0.7Kg*10N/Kg=7N (   ) 11. ―Do you want to see the film Harry Potter ff？—The film Harry Potter? I        it. It's really wonderful.   A. see   B. have seen   C. was seen   D. had seen(   ) 12. ―The radio is too noisy.         ， please.一All right. I'll do it right now.   A. Turn it off   B. Turn it on   C. Open it   D. Close it(   ) 13. —Is Miss Li in office?―No,she        the classroom.   A. has gone to   B. has gone   C. has been   D. has been to(   ) 14. ―Have you mended your shoes,Bob?―Yes,I        them twenty minutes ago.   A. have mended   B. mend   C. had mended   D. mended(   ) 15. Most        people live on rice.   A. south   B. north   C. northern   D. southern