A． Fifteen years. B． Eleven years. C． Four years. D． Eight years.
参考答案B解析:How long has Giles Clark worked in Queensland?
细节题。根据短文中Now I live in Australia and have worked at the same place in Queensland for 11 years(现在．我住在澳大利亚，并且在昆士兰的同一个地方工作了11年.。可以知道，他在昆士兰工作了11年。