问题
选择题
They have worked in this factory for _____. [ ]
A. two year and a half
B. two and a half year
C. two years and half a
D. two and a half years
答案
答案：D
搜题请搜索小程序“爱下问搜题”
They have worked in this factory for _____. [ ]
A. two year and a half
B. two and a half year
C. two years and half a
D. two and a half years
答案：D