4. He once a__________ to kill himself but failed.

3. The new discovery of oil is of great s______________ to the country’s economy.

2. Why didn’t you attend the meeting? Could you give me a reason for your a_____________.

1. Even an ordinary person may make c_______________ to our society. So never look down upon yourself.。

30. They say your report doesn’t ______ the fact.　 But I don’t ______ them _____ this point.

　　　　 　A. agree to , agree with, at　　　　　 B. agree on , agree to, on

　　　 　 C. agree on , agree on , on　　　　　 D. agree with , agree with , on`

29. In such dry weather, the flowers will have to be watered if they _________.

　　　　 　A. have survived　　 B. are to survive　 C. would survive　 D. will survive

28. Things fall to the ground _______ go up into the air because of gravity.

　　　　 　A. instead of　 　B. than　　　 C. rather than　　　 D. in place of

27. Take _______ half, they’re exactly the same.

　　　　 　　A. either　　　 B. any　　　 C. both　　　　　　 D. neither

26. I have been studying computer for several years and I still __________.

　　　　　 　A. have　　　 B. do　　　　 C. have been　　　 D. am

25. This book is said to be a special one , which _______ many events not 　　　　　found in other history books.

　　　　 　A. writes　　　 B. covers　　 C. prints　　　　　 D. reads