You needn’t make so many excuses. I ____ your parents.

填入下面一段文字横线处的语句，最恰当的一项是某一地区特定时间内游客数量超过其接待能力，是造成该地区旅游业出现种种问题的重要原因。若不提高其接待能力，再美丽的湖光山色也会暗淡无光， ，再动人的微笑服务也会丧失魅力。

. The train _____ for twenty minutes.

He failed the midterm examination and only then ________how much time he had wasted.

Look! Mary is sleeping.— Why not ________ the TV and close the door for her