【正确答案】 C

【答案解析】解析：本句话的意思是：在别人讲话时插嘴很没礼貌。interrupt：打断、插话。例如：The sports meet was interrupted by the heavy-rain．运动会由于暴雨中断了。leave：离开。例如：He left the office immediately after the work．一下班他就离开了办公室。talk loudly：大声谈论。例如：They are talking loudly about their holiday plan．他们在大声讨论着度假计划。stand up：站起来、起立。例如：All the students stood up to welcome their leacher．全体学生起立欢迎他们的老师。