

6 giờ trước
5 giờ trước
Question 13: B. customs
Reason: The text mentions "customs and traditions" in the same sentence. In English, "customs and traditions" (phong tục và truyền thống) is a very common pairing when talking about cultural practices. "Rules" or "laws" are too formal for general neighborhood behavior.
Question 14: A. should
Reason: This is a piece of advice or a polite suggestion for social etiquette. While it is important, it isn't a legal requirement ("must" or "have to"). "Should" is the most appropriate way to guide new neighbors on local manners.
Question 15: B. are
Reason: This is a Passive Voice structure in the present tense: S + am/is/are + V3/ed. Since "loud noises" is a plural subject, we use "are". The sentence means: "Loud noises should be avoided."
Question 16: C. must
Reason: In the concluding part of a community appeal, "must" expresses a strong necessity or a firm obligation to achieve a goal (building a stronger community). It emphasizes the importance of mutual respect.
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