问题
选择题
Students continue to eat in school canteen______ they complain the quality of the food .
A．as though
B．even though
C．as long as
D．unless
答案
答案：B
题目分析：考查连词：A. as though 好像B. even though即使C. as long as 只要D. unless除非，句意：学生继续在学校餐厅吃饭，即使他们抱怨食物的质量。选B。
点评：这几个词都是连词短语，要分清每个连词短语的含义和用法，做题时关键看上下文和句意的逻辑关系做题。