Question

【题目】In China and some other countries,it is impolite to speak loudly you are having a meal.

A.before B.while C.after D.because

Answer 1

【答案】B

【解析】

试题分析：句意:在中国和其他一些国家当吃饭的时候大声说话是不礼貌的。A. before在……之前；B. while当……时候；C. after在……之后；D.because 因为。根据句意此题选B。