Housing price in China is so expensive that it is the reach of those with average income

问题补充：

Housing price in China is so expensive that it is the reach of those with average income, so the government is taking measures to solve the problem.

A. over

B. within

C. beyond

D. below

答案：

A. over

B. within

(答案→)C. beyond

D. below

解析：考查介词的用法。句意“中国的房价是如此的高，以至于超出了普通收入者的支付能力，因此，政府正在采取措施来解决这个问题。”beyond“超过，在那边”。故选C。