—According to the weather report, there is likely to be heavy rain tomorrow.
—_______, we’ll have to change the plan for the outgoing.
| A．If so | B．If not | C．Unless so | D．Unless not |
31．The elderly clerk showed us several beautiful dresses in my size and price range，hut___________ were right for me．and we were ready to leave．
| A．nothing | B．anything | C．none | D．They |
30. According to the report，China's graduates will find it tougher than ever to get jobs in the coming year, as China’s economy_________and unemployment rises．
| A．breaks down | B．slows down | C．picks up | D．takes up |
29. Studies show that the things that contribute most to a______of happiness cannot be bought．
| A．cause | B．thought | C．suggestion | D．Sense |
28. —Has your sister finished her novel yet?
—I have no idea．She________it last week.
| A．wrote | B．has written | C．was writing | D．had written |
27．To shut your eyes to facts．as many of you do,_______foolish．
| A．is | B．are | C．are | D．Were |