7. It' s easy to blame the decline of conversation on the pace of modern life and on the vague changes ______ place in our ever-changing world.

　　A.taking

　　B.to take

　　C.take

　　D.taken

　　8. This is an exciting area of study, and one _____ which new applications are being discovered almost daily.

　　A.from

　　B.by

　　C.in

　　D.through

　　9. _____ can be seen from the comparison of these figures, the principle involves the active participation of the patient in the modification of his condition.

　　A.As

　　B.What

　　C.That

　　D.It

　　10. Although I had been invited to the opening ceremony, I was unable to attend _____ such short notice.

　　A.to

　　B.in

　　C.with

　　D.on

　　答案：1.A 2.B 3.D 4.C5.D 6.B 7.C 8.C 9.A10.D