问题
选择题
--- Something wrong with my headache .
--- No wonder. You ___________ on the program for such a long time.
A．have worked
B．worked
C．have been working
D．were working
答案
答案：C
搜题请搜索小程序“爱下问搜题”
--- Something wrong with my headache .
--- No wonder. You ___________ on the program for such a long time.
A．have worked
B．worked
C．have been working
D．were working
答案：C