1. How much does the air-condition go up/come down?
参考：If the prices continue to go up, people will begin to kick.
《21世纪大英汉词典》 如果物价继续上涨，人们就会开始抱怨了。
物价的上涨可以用go up/run up 下降可用come down/fall 等
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2. This dress/This pair of shoes doesn't fit me.
绝对不能用this clothes，没这种说法，
如果用clothes的话，应该用复数来表达，比如 those clothes, these clothes.
如果是一件衣服的话，用具体的，比如this dress,this shirt,this coat
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3. This pair of shoes/sandals doesn't fit my feet, they are too loose/tight.
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4. How much is this car worth now?
bus; coach;大轿车
limousine;大型高级轿车
car; closed car; sedan; saloon car;小轿车
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一般来说，轿车都说的是小轿车，所以car就行了。
这个句子worth绝对不能换成value，换了就错了~