W: It’s 10:45 already and I’ll miss my 11 o’clock plane.
M: Don’t worry. The clock is haft an hour fast.

When does the conversation take place（）

A．He tried calling the woman but failed.
B．He had no time to call the woman.
C．He called the woman but she was out.
D．He doesn’t know the number of the woman.

A．10 yuan for the first 30 words.
B．10 yuan for the first 20 words.
C．50 fen for the first 30 words.
D．50 fen for the first 20 words.