Wang Pin is an advanced worker in our co
题型:选择题
问题:
Wang Pin is an advanced worker in our company. He _______ for four years in Yangzhou University.
A.studied
B.has studied
C.had studied
D.has been studying
Wang Pin is an advanced worker in our company. He _______ for four years in Yangzhou University.
A.studied
B.has studied
C.had studied
D.has been studying