(Bob, James and George meet at the entrance of a subway before setting out for an outing．)

Bob：Hello, James．　　1　　

James：Oh, not at all．I’ve only been here a few minutes．

Bob：Where is George?

James：He hasn’t come yet．He’s going to be late．

(After a little while, George came)

George：I’m terribly sorry．

Bob：　　2　　 Let’s get started

George：Listen．I came to tell you that I couldn’t go with you today．

James：Good heavens!　　3　　

Bob：You look busy, George．

George：Yes, I’ve got a difficult essay to finish．Mu tutor will want to see it tomorrow．I hope I haven’t spoiled the fun．

James：Oh, no．It’s quite all right．Don’t worry about it．

Bob：　　4　　

George：　　5　　 Have a nice day, both of you．

Bob：Good luck．George．

James：Bye-bye．

A．Sorry to be in the way．

B．I’m awfully sorry．

C．It can’t be helped

D．I mustn’t hold you up．

E．What’s the matter with you?

F．I’m sorry to keep you waiting．

G．It doesn’t matter．