stock.(这个商店有白糖供应.) in demand(needed；wanted；) 有需求: The book about dogs was much in demand in the library.(Many people wanted to read the book about dogs that in the library.) in need(in poverty，in trouble)在贫困中，在困难中: A friend in need is a friend indeed。(A friend who helps when one is in trouble is areal friend.) in store(saved up in case of need； ready for use for some purpose) 储备待用:于If the electricity goes off，we have candles in the closet.(We have candles put away if we need them for light.)(如果电灯灭了，我们壁橱里还备有蜡烛.)[注意] in stock 强调商店备有现货以供出售，而 in store 则指储备物品以供急 需使用。此外 in store 还可以表示”等待着，必将发生”。例如: I have a surprise in store for you.(我有一个你料想不到的消息要告诉你。)本题译文: 这家商店没有红鞋供应，所以玛丽买了一双宗色的鞋.题目10：What makes the space shuttle _____ is that it takes off like a rocket but lands like an airplane.