試題詳解

19. Mike: My brother has really gone crazy. He says he wants to take up skydiving. Can you believe that? Lily: What?________ 
Mike: I’m not. He’s dead serious.
Lily: Well, you have to stop him. It’s really dangerous.
(A) Am I going crazy?
(B) I believe he’s dangerous.
(C) You’ve got to be kidding.
(D) Have you talked to him seriously?