单项选择题
It is the usual（）in our school that if you spoil any material，you’ll have to pay for it．
A.habitB.deedC.ruleD.practice
单项选择题 Only when I read The Da Vinci Code a second time（）to appreciate its good planning．
填空题 根据括号内所给单词的正确形式填空。Thin as it is ，this（）（book）cost me eight dollars.
单项选择题 A desert is a place（）is（）nothing but sand．But a camel can walk in the desert for months without any food or water．
