B. Unfriendliness of the locals.

　　C. Miscommunication with parents.

　　D. Poor government service.

　　【答案】C

　　【解析】细节理解题。根据One of the biggest challenges educators face, is communicating effectively with parents who don’t speak English — an issue that, in part, has contributed to complaints of discrimination by Latino students in some cities.由于学生的家长不会英语所以交流起来有一定的困难，容易引起误解，故选C。

　　阅读理解---D

　　(2017·太原市二模，C)

　　Facebook has been tricking people into using its socalled “fun, free service”.

　　Users, however, are actually paying an unconscious high price—the leak of their personal information. Facebook then attempts to make money by selling their data to advertisers that want to send targeted messages.

　　Most Facebook users don't realize this is happening. Even if they know what the company is up to, they still have no idea what they're paying for Facebook because people don't really know what their personal data is worth.

　　The biggest problem is that the company keeps changing the rules. Early on, you could keep

　　everything private. That was the great thing about Facebook—you could create your own little

　　private network. Last year, the company changed its privacy rules so that many things—your

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