68. The new" secretary has written a remarkably __ report only in a few pages but with all the details.
A. concise
B. clear
C. precise
D. elaborate
69. Now a paper in Science argues that organic chemicals in the rock come mostly from __ on earth rather than bacteria on Mars.
A. configuration
B. constitution
C. condemnation
D. contamination
70. The city will __ these buildings to make room for the new highway.
A. tear off
B. tear out
C. tear away
D. tear down
71. If anyone wants to be __ by others, wealth, clothing or physical attractiveness are not requirements.
A. respectful
B. respective
C. respectable
D. respected
72. The little girl was so frightened that she just wouldn't __ her grip on my arm.
A. loosen
B. remove
C. relieve
D. dismiss
73. Bob isn't __, but he did badly in the final exams last semester.
A. gloomy
B. dull
C. awkward
D. tedious
74. My tutor, frequently reminds me to ___ myself of every chance to improve my English.
A. assure
B. inform
C. avail
D. notify