A、He had to work overtime. B、He was held up in traffic. C、His car ran out of gas. D、He had a traffic accident. B

M: Would you like me to get the film developed for you at the store?
W: Could you wait until I finish the other roll?
Q: What does the woman mean?

M: If the traffic hadn’t been so busy, I could have been home by 6:00.
W: What a pity! John was here to see you.
Q: What happened to the man?