1.You're a student.I'm a student,too(合并成一句）
___Both____you____and__I____are____ __students_________.
2.American fast food seems to be the most popular in the world.（改为同义句）
It seems American fast food is the most popular in the world.
3.After he said these words,he went out of the room.（同义句转换）
___After___ _saying______ __words_______,he went out of the room.
4.Something is wrong with him.(改为否定句）
____Nothing___ __is____wrong with him.
5.The girl lives in a house.The windows of the house face south.（合并成一句）
The girl lives in the house___with____ __windows_____ face south.