31. _______, he always tries his best to complete it one time.

A However the task is hard　　　　　　 B However hard the task is

C Though hard the task is　　　　　　　 D Though hard is the task

30. Seldom ____ as lonely as now, though I have been living in this house for more than 20 years.

　 A have I felt　　　 B I have felt　　　 C I had felt　　　 D had I felt

29. _______, they will do us a lot of good.

A. Unpleasant as his words may be　　　 B As unpleasant his words may be

C His words may be as unpleasant　　　　 D Unpleasant his words as may be

28. Only when we saw the photos about the air crash_____ how terrible it was.

A had we known　　　 B we had known　　 C did we know　　 D we knew

27. ______, it will make a difference to the life of the people in the earthquake – stricken area.

　 A However the contribution is small　　　 B No matter small the contribution is

　 C However small the contribution is　　　 D No matter how the contribution is small

26. On receiving the scholarship,_____ that she stood for quite a while speechless.

A Sue was too excited　 B so excited was Sue　 C excited was Sue　 D too excited was Sue

25. _____ is the power of the Internet that you can get whatever you want in no time.

A So　　　 B This　　　 C That　　　 D Such

24. So_____ that all the living things died out gradually.

A serious polluted the lake is　　　　 B serious polluted is the lake

C seriously polluted the lake is　　　 D seriously polluted is the lake

22. --- ____ for the tree tickets，I would not have gone to the film so often.　　　

A. If it is not　　　 B. Were it not　　 C. Had it not been　　 D. If they were not

(23) Don’t be too rude to your father. Never in his life_____ in that way.

　 A has he spoken to　 B he has spoken to　 C has he been spoken to D he has been spoken to

21.　 --- ___it rain tomorrow， we would have put off the visit to the Yangpu Bridge.　

A. Were　　　　　 B. Should　　　　 C. Would　　　　 D. Will