句型转换。

1. His father coughs badly, so he must stop smoking. (同义句转换)

    His father has a bad cough, so he must_______ _______smoking.

2. We don’t want to walk to the park. We will take a bus.(同义句转换)

    We will take a bus to the park _______ _______ walking.

3. You mustn’t walk on the lawn.(改为祈使句)  

     ________ ________ on the lawn.

4. Having healthy eating habits is necessary for your health.(同义句转换)  

     _________ is _________ for you ________ have healthy eating habit.

5. He looked after the old man.(同义句转换)  

    He ________ for the old man.

最易出现空洞内液平的病变是()

A．肺结核

B．急性肺脓肿

C．慢性纤维空洞型肺结核

D．肺癌

E．肺囊肿合并感染