1.I heard a passenger behind me shouting to the driver, but he refused _____________ (stop) until we reached the next stop.
【答案】to stop
【解析】考查动词不定式。句意:我听到后面一位乘客向司机喊叫,但他拒绝停车,直到我们到达下一站。refuse to do sth.是固定搭配,意思是“拒绝干某事”,故填to stop.
2.I regret ________ (inform) you that they are unable to come to your wedding tomorrow.
【答案】to inform
【解析】考查固定短语。句意:我很遗憾地通知你,他们明天不能来参加你的婚礼了。regret to do sth.很遗憾做某事,固定短语。故填to inform.