跪求!!帮忙给出讲解，答案是DCBCBDACAA

This is an old story. People tell it to children all over the world. Cinderella's father and mother ____21___. She lived with her aunt. Her aunt had two daughters. All of them Cinderella because she was beautiful. They made her ___22___ in the house all day long.

　　One day， the Prince was ___23___. The king asked all the ladies in the land to come to a great dance. __24___ the dance the Prince would choose his wife.

　　When Cinderella heard about the dance， she wanted to go. Her aunt and the ugly sisters laughed and said， "You can't go." Then they went off to the dance. Poor Cinderella sat by the fire ___25___.

　　___26___ she heard a gentle voice saying， "Don't cry， Cinderella， you shall go to the dance. I will help you." Cinderella ___27___ and saw a little old lady. She waved her stick at Cinderella. Suddenly she was wearing a wonderful dress. "Now go to the dance." said the little lady.

　　Cinderella enjoyed the dance very much. The Prince danced with her ___28___. Suddenly the clock began to strike twelve. She hurried back home. She lost one of her glass shoes ___29___. The next day， the Prince sent men to all parts of the country with the glass shoe.

　　"If anyone can wear this small shoe，" he said， "She must be the beautiful lady， and I will marry her."

　　When the men brought the shoe to the ugly sisters， they both pretended ___30___ the shoe， but their feet were big and the shoe was small. The man laughed. "Let Cinderella try." Said one of the men. Cinderella put the shoe on easily. Then the Prince married her， and they lived happily ever after.

　　21. A. both were dead B. were both death

　　C. were both died D. were both dead

　　22. A. to do all the work B. did all the work

　　C. do all the work D. doing all the work

　　23. A. old enough to be married with B. old enough to marry

　　C. old enough to marry with D. old enough to be married

　　24. A. During the night of B. At the night of

　　C. One the night of D. In the night of

　　25. A. to cry B. crying C. to be crying D. to be cried

　　26. A. Sudden B. All on sudden C. On sudden D. All of a sudden

　　27. A. looked up B. looked at C. looked for D. looked down

　　28. A. at that time B. at times C. all the time D. at one time

　　29. A. on the steps B. within the steps C. in the steps D. under the steps

　　30. A. to put on B. putting on C. to wear D. to have on

我想你是想问为什么平行四边形对边相等吧。连结AC（对角线）由AB平行CD可得，角BAC=角DCA 由AD平行BC可得，角BCA=角DAC 且AC=AC 得，△ABC≌△ACD

再看看别人怎么说的。

翻译吗？看楼主都给出答案了咧……