---John, will you please ______ the blackboard now? It's your duty.

---OK.

阅读短文，从方框内选择适当的词并用其正确形式填空，使短文意思通顺完整。每空限填一次，每词限用一次。方框中有两个词是多余的。

ring,  always,  angry,   neither,   never,   hospital, clean,  know,  pay,  dirty,  forget, be

     Mr. White works in a big office. He’s able to deal with all kinds of matters, so he’s always   【小题1】  more than his workmates. Of course he’s often busy and has no time to do the housework. His wife  【小题2】  him well and does all at home.
Bad luck! Their daughter was hurt in a traffic accident last month and had to be in  【小题3】 . Mrs. White was looking after her there and she couldn’t go home. As Mr. White  【小题4】 did any cleaning, the rooms were all disorderly (凌乱的).
Yesterday morning, before Mr. White got up, the telephone  【小题5】 . He sat up to answer it. His friend told him to write an important telephone number down. But he could find   【小题6】a pen nor a piece of paper. Then he found there  【小题7】  much dust (灰尘) on the table and wrote the number on it. But soon he   【小题8】 it and went to work.
Two hours later his wife came back and looked for a sweater for her daughter. Her husband came back while she was   【小题9】  the table. He couldn’t see the number on the table and called out  【小题10】 , "Who let you clean the table?"

1 

— ____ do you clean the classroom?

— Three times a day.

A. How long               B. How often             C. How soon              D. How many