20.　　　　　 　I saw him, I know he is my former friend, Henry.

A. A second　　　 B. The second　　　 C. For the second　　　　 D. In a second

19. ----- Excuse me, do you have the time?

　 　------___________

A. Yes, I do.　　　　　　　 　　　　　B. Of course, I have.

C. A quarter to ten.　　　 　　　　　　D. No problem.