慢性阻塞性肺气肿最常见的原发病是：
A、肺结核
B、支气管扩张症
C、慢性支气管炎
D、支气管哮喘
E、肺纤维化
参考答案：C
按要求完成下列句子。
1. I like eggs and bread for breakfast.（对划线部分提问）
2. many juice of bottles How（连词成句）
3. Whose glove are these?（改正错句）
4. I like meat.（改为否定句）
5. Would you like some rice?（作出肯定回答）
— What color are the cats?
— I think _____ white and black. [ ]
A. they're
B. them
C. it's
D. it
