支气管肺组织的感染和阻塞所致的支气管扩张症的最常见原因是 A．肺结核 B．支气管曲菌

L：Hello, Pan Wei. Is this your new car? How nice!
P：Hi, Lisa. Would you like to go for a ride with me?
L：Great!
P：Well, you don’t have to wear the seat belt（安全带）.   1 .
L：I’m sure you are. You know, not all drivers are as good as you.
P：  2 . No one will stop us right now.
L：Oh; no, no. We don’t obey traffic rules for the police.   3 
P：I agree, but I feel uncomfortable wearing a seat belt.
L：So do I, a little.   4  You would go flying if your car was hit while you are not wearing a seat belt.
P：  5  I am wearing it. Do you know who invented the seat belt? The man should be remembered.
L：I don’t know. But Volvo, a famous Swedish car maker, was the first to use seat belts in 1849.

A: That sounds reasonable. B. We obey them for ourselves！ C. It taught me a good lesson. D. There are few cars at this time on the road. E．Believe me，I’m an excellent driver. F. And there are no policemen around. G. But the seat belt is for your safety.