餐饮电梯的主要作用是（）。
参考答案：运输食物
修改下面的一个病句
我的字条上不是写得很清楚吗：“孙晓奇还欠款四百元。”
When a pencil is partly in a glass of water, it looks as if it ______. [A] breaks [B] has broken [C] were broken [D] had been broken
