The boy _in the.street till a PLA man came to pick it up A was crying.B has been crying C has cried D had been crying 为什么选D 阿 不是现在完成时么
问题描述:
The boy _in the.street till a PLA man came to pic
k it up
A was crying.B has been crying
C has cried D had been crying 为什么选D 阿 不是现在完成时么
答