My father is a doctor.

That's good. ________?

[　　]

A．How is your mother

B．How old is your mother

C．What about your mother

D．What' s your mother' s name

—— Do you mind my opening the window?

—— ________.

[    ]

 A. No, you can't B. Not at all

C. No, please don't D. Yes, please

—— How are you?

—— ________

[    ]

A. Not bad, and you? B. I'm very nice.

C. Pretty good. D. I'm very good.

You answer the phone. Someone wants to speak to your father, who's at home, you say"________".

[    ]

A. Wait for me a minute B. Please wait here

C. Hold on, please.　　 D. Please don't go away

—— How often do your parents let him watch TV? 

—— __________ ?

[    ]

A. In two days　　　　    B. Only once a week

C. When I finish my work  D. In the evening

—— Good morning! Can I help you ? —— ________ How much are they ?

[    ]

A. I'd like the glasses.

B. Can I borrow the dictionary, please?

C. Can I look at the pen?

D. Would you show me a watch?

—Please don't make a noise.

—________. I'll be as quiet as a mouse.

[　　]

—Do you know the boy over there?

—________. He is my good friend.

[　　]

—I have finished my homework.

—________.

[　　]

Let me introduce myself . I' m John Smith.

______________.

[　　]

A．What a pleasure

B．It's a pleasure

C．Pleased to meet you

D．I am very pleased