问题
选择题
Many people agree that _____ knowledge of English is a must in _______ international trade today. [ ]
A. a; /
B. the; an
C. the; the
D. /; the
答案
答案：A
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Many people agree that _____ knowledge of English is a must in _______ international trade today. [ ]
A. a; /
B. the; an
C. the; the
D. /; the
答案：A