21. I took the medicine, but it didn’t have any________ on me.

　　A. effect B. relation C. touch D. affect

　　22. The age of the students in this class________ from eighteen to twenty.

　　A. changes B. ranges C. alters D. limits

　　23. It would be ________ a risk to let the child go to school by himself.

　　A. following B. passing C. running D. carrying

　　24. He ________ a knowledge of this language by careful study.

　　A. acquired B. required C. inquired D. requested

　　25. We develop trade with that company for our shared________.

　　A. honour B. reward C. benefit D. prize

　　26. If you take this medicine twice a day, it should ________ your cold.

　　A. heal B. cure C. treat D. recover

　　27. We object________ punishing a whole group for one person’s fault.

　　A. against B. about C. to D. for

　　28. She has fallen in love with Jack, ________ I find hard to imagine.

　　A. who B. that C. whom D. which

　　29. Are you going downtown this afternoon? I am going to have these letters ________.

　　A. mailed B. mail C. to mail D. mailing

　　30. , everything would have been all right.

　　A. He had been here B. Been here he had

　　C. Here he had been D. Had he been here

　　21-25 ABCAC 26-30 BCDAD