问题
I lost sight of Wang Ping when we reached _________looked like a large market
A:needn’t do that, in fact
B:needn’t have done, in effect
C:needn’t have, in practice
D:needn’t, in time
B:needn’t have done, in effect
C:needn’t have, in practice
D:needn’t, in time
正确答案是：
