61. Our research has focused on a drug which is so ______ as to be able to change brain chemistry.
A. powerful
B. influential
C. monstrous
D. vigorous
正确答案是
62. When he was director of the company, his first ______ was to bring about better working conditions.
A. accumulation
B. achievement
C. success
D. job
正确答案是
63. I can meet you at eight o'clock; ______ you can call for me.
A. incidentally
B. actually
C. alternatively
D. accordingly
正确答案是
64. The agency has full ______ to run operations in any friendly country.
A. licence
B. permit
C. permission
D. privilege
正确答案是
65. He has everything he wants; he's a(n) ______ young man.
A. envious
B. enviable
C. respectable
D. respectful
正确答案是