Miss. Gao _______ in the library for thr
题型:选择题
问题:
Miss. Gao _______ in the library for three years. But now she is a teacher.
A.worked
B.has worked
C.had worked
D.has been working
Miss. Gao _______ in the library for three years. But now she is a teacher.
A.worked
B.has worked
C.had worked
D.has been working