问题
选择题
______ he didn't know the custom in that country; otherwise, he wouldn't have made such a mistake. [ ]
A. Approximately
B. Accidentally
C. Obviously
D. Occasionally
答案
答案：C
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______ he didn't know the custom in that country; otherwise, he wouldn't have made such a mistake. [ ]
A. Approximately
B. Accidentally
C. Obviously
D. Occasionally
答案：C