Thomas.please be quiet．The others hear very well． A．can't B．mustn't C．shouldn't D．needn't 题目和参考答案——青夏教育精英家教网—

     About 130 years ago,Thomas Edison invented thelight bulb. His bulb turned night into day,but today manypeople want to turn off the light.
     The European Union( 欧盟) has decided that peo-ple should stop using the Edison-style light bulb.Instead, they should use compact fluorescent lamps(CFLs 节能灯).
     "CFLs save energy and last longer. They can savemoney in the long run," said a British official.  CFLs use67% less electricity than the older bulbs. Scientists saythat if everyone used CFLs,electricity use would be cutby 18% . There would also be much less greenhouse ga-
     But it's difficult to make people change their light-ing habits. Firstly,CFLs are more expensive. They cost 8times the prices of the older bulbs. Secondly,many peo-ple don't like the CFL bulb. They find it too bright.
     CFLs have been around for several years. However,the older lights still make up about 2/3 of total light bulbsales.

根据短文内容, 判断正（T）误（F）。
(     )1. Thomas Edison invented the CFL bulb 130 years ago.
(    )2. Using CFLs helps protect the environment.
(    )3.If you get an older bulb for l euro( 欧元) ,a CFL bulb will cost you 8 euros.
(    )4. CFLs have been widely used for many years.

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