题目内容
We ________ in this modern school for many years, but we have never regretted our final decision to go to the western part of China to help the poor children there.
A.worked
B.was working
C.have worked
D.had worked
We ________ in this factory since we left school.
have worked
work
worked
are working
We ______ in this modern school for many years, but we have never regretted our final decision to go to the western part of China to help the poor children there.
A.worked B.was working C.have worked D.had worked