上，严重影响了老百姓的生活和健康。请写一篇短文，描述一下北京雾霾的情况，分析雾霾出现的原因，并提出治理雾霾的措施。 注意：词数不少于100词。 参考范文：
During the 15 days from New Year’s Eve to Lantern Festival, Beijing was affected by smog for more than half the time, because of which people suffered a lot. On the road people drove slowly because they could not see clearly. People also suffered from many illnesses caused by smog.
The smog in Beijing has been caused by many factors, in which the increase of cars in the city area plays an important role. The cars send off a lot of poisonous gases, which in turn adds to the already serious air pollution.
In my opinion, the number of cars should be limited. We should call on the people to use more public transport. Only in this way can we expect to have more sunny days.
1.词数100-120; 2.email的开头与结尾已给出，不计入总词数。Dear Mike,
Thank you very much for your concern. ___________________________________ Regards!
One possible version:Dear Mike，
Thank you very much for your concern. Last months several places in Beijing were blanketed with thick yellow fog. Everything around disappeared from oursight. Some highways were closed. Traffic jams were commonly seen in the streets. Many people, especially children and seniors, even found it difficult to breathe. As a result, local hospitals were crowded with people who had problems with their noses and lungs. Part of the cause was the dry weather, but the severely damaged environment contributed a lot to this nightmare. Personally I didn’t get any health problems in the haze because I stayed mostly indoors.But to make a significant change we really have to do more to protect our environment. To live a better life we have to push on with the economy, but it wound be meaningless if we have to achieve it at the cost of our breathing air.