(单选题)

To deal with the problem in recent years, exchange programmers have to ______.

A.extend the range of host families

B.limit the number of the exchange students

C.borrow much money to pay for the costs

D.make hosting foreign students more exotic

参考答案：A

参考解析：

细节理解题。本题考查为了解决住宿困难的问题，交换生项目做出的举措。A项，“拓宽住宿家庭的范围”。由第五段 “exchange programs are increasingly broadening their requests to include everyone…”可知住宿家庭的范围放宽了。A项正确；B项，“限制交换生的数量”，不是这个项目的举措，是美国学校系统的措施，B项错误；C项，“借钱来支付成本”，全文未提及，C项错误；D项，“使为外国学生提供住宿这件事更有异国情调”，交换项目并没有这么做，D项错误。故选A。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语