电气设备或线路过热的原因可能是（）。A、短路B、接触不良C、过载D、散热不良

       Tony is a successful businessman. He ever used to have a happy family. But three years ago, his wife
  1   because of illness.  He loves his daughter very much, so he hasn't   2   again. He is still alone.    
       Today is his  3   birthday. He wants to cheer her up, so he decided to have a birthday party specially
for her in their house. In the morning, he cleaned up all rooms. After lunch, he drove his car to buy some
fresh flowers and fruits and a big cake.   4   his way home, he noticed an _5    man whose wheelchair was
broken. He stopped his car on   6   side of the street, then he walked to him and helped him   7   the
wheelchair. After he finished it, he drove home quickly.    
       After he got home, he put the purple flowers in her daughter's bedroom. Then he set the fruits, the cake, and some forks on the table. He   8   wanted to make some delicious pies for the guests. By the time
someone   9   at the door, he had prepared all things well. He gave his daughter a   10   birthdayparty.