根据短文内容选择可以填入空白处的最佳答案。

Dear Dr．Bamford,

　　I know you are a famous scientist who has done great work on cloning(克隆)animals．Please excuse me for writing to you, but I need your 　　1　　 Let me explain．

　　I am a 58-year-old man．I'm very rich．I live in a large house．My wife died three years ago; we didn't have children．

　　So, am I 　　2　　?No, because Cindy is with me．Every night we eat dinner together and watch TV．Cindy sits beside me 　　3　　 I feel very happy．I'm fascinated(着迷的)with her beautiful green eyes．She's also very smart．Sometimes she thinks only about herself．But that's what I 　　4　　 about her．She is quite a beautiful Siamese cat．There is no other cat like her in the whole world．

　　These days I worry about 　　5　　 Cindy．She is getting older and older．Cats don't live 　　6　　 humans, of course, s she will die before I do．I cannot imagine my life 　　7　　 Cindy．

　　Well, why not get another cat after Cindy dies?　　8　　!No other cat can ever replace(代替)her．

　　I have been thinking about this：Clone Cindy．Scientists are able to clone sheep and mice and other animals．They should be able to clone cats without much 　　9　　 Luckily, I am a rich man．I don't care how much money I will spend cloning Cindy．I think 　　10　　 to clone pets．It's not cloning humans．

　　What do you think? Could you clone Cindy?

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阅读下面短文，然后根据短文内容选择最佳答案。

　　Everyone tries to get to school on time．But when bad weather gives you trouble, can you still make it before the bell rings?

　　In northern China during spring, big sandstorms often make trouble for students and everyone else．

　　‘When we had a sandstorm last week, I had to get up half an hour earlier so I wouldn't be late for school,’said Xing Wei, a Junior 1 boy at Yaohua Middle School in Tianjin．

　　Xing usually gets up at about seven and needs 20 minutes to get to school．But on sandstorm day, he needs 40 minutes．When the sky is dark with sand, buses and cars all move much more slowly．Sometimes, people can't even see for 200 metres．

　　Sandstorms usually happen in spring．This year, sandstorms started in late Match．They have happened in more than 10 provinces in northern China this year．More than 70 million people have had problems in those places because of the storms．

　　People in southern China don't have to worry about this kind of bad weather．Most of the sand comes from Gansu and Inner Mongolia．In northern China, lots of places have few trees and don't get much rain．People there have been cutting down too many trees．When there aren't many trees, the ground can't keep enough water．Over the years, the ground becomes looser．Strong winds take the loose sand into the sky．

　　Sandstorms are bad for people's health．If people breathe too much sand, they could cough or have asthma(哮喘)．

　　Sandstorms also give farmers lots of problems．Sometimes their sheep get lost in the storms and never get back home．The winds also tear farmers' houses down．

　　What can you do to stop sandstorms? Here's an idea：Ask your parents to help you plant some trees this spring．

　　If you see people cutting down too many trees, tell them about the danger of sandstorm, and ask your government to stop them from cutting．

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