Directions: In this part, there is a passage with 15 blanks. For each blank there are four choices marked A, B, C and D. Choose the best answer for each blank and mark the corresponding letter on your ANSWER SHEET with a single line through the center.
留言板管理人员有权保留或删除其管辖留言中的任意内容
本站提醒:不要进行人身攻击。谢谢配合。