A、By train. B、By air. C、By ship. D、By truck. B题干问男士建议用怎样的方式运送货物。根据对话可知，男士提议由火车运输改为空运，故选B。

W: Mr. Johnson, can you deliver our goods next week?
M: No, I’m afraid we can’t.
W: When is the earliest time we can receive them?
M: Early next month, I think.
W: (6) It’s too late. You see, the sales season for this commodity is coming soon.
M: Yes, I understand.
W: Is there anything else you can do?
M: (7) Maybe we can deliver the goods by air instead of by train.
W: Well, the cost would be much higher.
M: That’s true. (8) But you can receive them next week.
W: All right. Perhaps that’s all we can do now.
Q6: Why does the woman think the delivery is too late?
Q7: What suggestion does the man make to deliver the goods?
Q8: When can the woman receive the goods?