30. A. Although B. Moreover C. Therefore D. However Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions. 31. I wish everybody is fully aware of the importance of preserving their traditions and culture. A. is B. of C. preserving D. culture 32. People are not allowed to enter the park after midnight because of lacking of security. A. are B. to enter C. after D. lacking 33. The economic reform started in Vietnam in 1986 helped millions of people to get out of poverty. A. The B. started C. millions of D. out of 34. The teacher felt badly about not giving us permission to go outing overnight. A. The B. badly C. not giving D. overnight 35. Scientists say that in the future incurable diseases will be cured, and "bad" genes will probably placed. A. in the future B. will be C. and D. placed