根据汉语提示完成句子

1. He thinks________(学习语法)is too boring.

2. The best way to learn new words is by              (读英语杂志).

3. The students want to write                (完整的句子).

4. They                (害怕)to speak English out of class.

5. Students in school might feel they have               (好多工作要做).

关于慢性支气管炎的临床表现，下列哪项正确（）。

A.咳嗽咳痰，白天较夜间明显

B.以脓性痰为主，偶有咯血

C.肺部啰音多在背下部

D.肺部听诊不应该有哮鸣音

E.以上都不对