31. The discovery was made quite by accident, _____ we hadn’t expected.

　　 A. what　　　　　　　　 B. that　　　　　 C. which　　　　 D. it

30. The scientists have found that many plants have _________themselves to desert conditions.

　 　A. adapted　　　　　　　 B. accompanied　 C. declared　　　 D. occupied

29. He's been resting today, so ___________ he'll be feeling better tomorrow.

　　 A. originally　　　　　　 B. hopefully　　　 C. especially　　　 D. actually

28. To her disappointment, what she had devoted herself to _______ in nothing but failure.

　　 A. resulting　 　　　 　　　　B. results　　　　 C. has resulted　　 D. resulted

27. Charles Babbage is generally considered_________ the first computer.

　　 A. to invent　　　　　　　 B. inventing　　 C. to have invented　 D. having invented

26. Claire’s robot looks tall and handsome ________his facial expressions never changed.

　　A．so that　　　 　　　　　B. although　　 C. as if　　 　　D. when

25. It was so _________ --- I couldn't remember his name!

A. embarrassed　 　　　　B. to embarrass 　C. embarrassing　 D. embarrass

24. The entrance has been widened to give improved access for __________people.

A. absent　　　　　　　　 B. awesome　　 C. beneficial　　 D. disabled

23. It was a good concert - -I enjoyed the last song ___________.

A. in other words　　　　　 B. in particular.　 C. all in all　　 D. in need

22. Sally likes going to the movies with her friends, _______ stories and playing basketball.

　　 A. to write　　　　　　　 B. writing　　　 C. writes　　　 D. written