Ruth comes from New York. (同义句)   
Ruth                New York.
What’s  the weather like today ?
              the  weather today ?
Many people are in the room.. They are dancing .(合并为一句)
Many people                  in the room .
Tom  is studying  now .( 划线部分提问)
            Studying  now .
They have an English class every day.   (用now替换 every  day  )
They                   an English class now.