The humidifier’s valve of air-condition should be （）, when the temperature is lower than 0℃.
以下表达是否正确：Sir/ Madam, the shampoo, hair conditioner, facial cleanser, toothpaste and tooth brush are all free.先生、女士，洗发水,护发素,洗面奶,牙膏和牙刷都是免费的。
以下表达是否正确：Could you tell me what your wallet is like?请问您的钱包里有什么？
以下表达是否正确：Do you know where the nearest subway station is?你知道最近的地铁站在哪里？
以下表达是否正确：Would you please tell me when the bus arrives at the railway station？你能告诉我这辆车什么时候到飞机场吗？
以下表达是否正确：Which department would you like to book for?请问需要约哪个科？
以下表达是否正确：This T shirt doesn’t fit. Can I exchange? 这件T恤儿不合身，我可以调换吗？
以下表达是否正确？In order to ensure the normal operations of the airplane, cell phones are strictly prohibited. 为了保证飞机能正常操作，手机是被严禁使用的。
以下表达是否正确：I’ll take it. Can you wrap it up for me? 我买了，你能帮忙打包吗？
以下表达是否正确：Would you like me to make up your room now? 我现在可以为您铺床了吗？
以下表达是否正确：Do you have one-day tour？你们有一日游吗？
以下表达是否正确：Do you buy them individually or by weight？你是想单独卖出还是称重卖出呢？
以下表达是否正确：We clean the swimming pool regularly.我们定期清洁泳池。
以下表达是否正确：Is there a Chinese speaking guide? 这里有会中文的导游吗？
以下表达是否正确：We will give you a discount of 10% off the room rate.房费我们会给您打九折。
以下表达是否正确：Are you familiar with the streets around here? 你对这附近的街道熟悉吗？
以下表达是否正确？The first thing you should do after arriving at the airport is to check-in. 到达机场后第一件要做的事儿就是选座位了。
以下表达是否正确：Where’s the fitting room？洗衣间在哪？
以下表达是否正确：Please take care of your belongings and valuables.请保管好您的个人物品和贵重物品。
请判断“just”在每个句子中所表达的意思是否正确 The instructor nodded to Ellen as she came into the classroom. （This means the instructor did not speak or extend her hand; he only nodded.) _____ The instructor just nodded to Ellen as she came into the classroom.
The humidifier’s valve of air-condition should be ____, when the temperature is lower than 0°C.
The only air-conditioning on the boat was ______.
When we stay at a room in a house with central air-conditioning system in summer, we should set the thermostat to a higher level in ______.
John had to pause from time to time to wipe the sweat off his forehead, because the air-conditioning system________（）
