题目

短文填空；请认真阅读下面短文及首字母提示写出所缺单词。 We have seen a rapid development of black - and - white TV into colour TV and then into HDTV.    Now almost every family has a TV and almost everyone  e  1  watching TV, In fact, TV has already become part of our  l  2  . Most people, young or old , are likely to  s  3   in front of a TV set in the evening instead of talking with each other or doing  a  4  else.      TV has many a  5  . For example, it can offer us the latest news about what are h  6   in every corner of the world;一项工程，甲乙两队合做30天可以完成，今两队合做12天，余下的甲队独做，24天可以完成，如两队单独做，各需多少天才能完成？