-Is your mother a doctor in Qilu Clinic? –No!But she        there for ten years.
#100112
A
worked
B
has been working
C
has worked
D
had worked
推荐题目
What do you think the children______when we get home?
#103924
A
will do    
B
are going to do
C
will be doing    
D
are doing
These days, we _____ for our final exams.
#102111
A
are prepared
B
have prepared
C
are preparing
D
will prepare