To invent a new kind of electric light, Thomas Edison did lots of ____.

1. A.
   research
2. B.
   inventions
3. C.
   experiments
4. D.
   experiences

To invent a new kind of electric light, Thomas Edison did lots of ____. 

根据短文内容和首字母提示，在下文空格处填入适当的词使短文完整。

I’d like to tell you about my dream classroom in the future．My classroom will be very b 1   ，so we can do lots of a   2   in the classroom．In summer，it will be cool and in winter it will be w      3   ，so it will be very comfortable      to s 4   in it ．There will be a beautiful garden in front of it．We can see many trees and flowers in it．There will a  5    be a cable TV in our classroom and we can watch it at noon．E 6     will have a computer on the desk，so we can read i  7    on the Internet．The lessons will be more interesting．We won’t use pens or pencils any more．We will use computers to do our homework i   8 ．The teachers won’t use chalk to write on the blackboard．They will g   9  the lessons w   10   the help of the computer．