Do you know when the Great Wall _______?
题型:选择题
问题:
Do you know when the Great Wall _______?[ ]
A. was come into being
B. came into being
C. had come into being
D. had been come into being
Do you know when the Great Wall _______?[ ]
A. was come into being
B. came into being
C. had come into being
D. had been come into being