问题
选择题
-_____ Mary work in a hospital in the past?
-Yes, she did.[ ]
A. Did
B. Does
C. Can
D. Was
答案
答案：A
搜题请搜索小程序“爱下问搜题”
-_____ Mary work in a hospital in the past?
-Yes, she did.[ ]
A. Did
B. Does
C. Can
D. Was
答案：A