问题
选择题
While ____ to foreigners, you must try your best to make yourself ____. [ ]
A. spoken; understood
B. spoken; understand
C. speaking; understood
D. speaking; understand
答案
答案：C
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While ____ to foreigners, you must try your best to make yourself ____. [ ]
A. spoken; understood
B. spoken; understand
C. speaking; understood
D. speaking; understand
答案：C