There will ( )( )( ) in cities in 10 years.
There will ( )( )( ) in cities in 10 years.
十年后,在城市将会有更少的污染.
At the weekends.I ( )( ) but we know what will happen.
在周末,我能经常去拜访我的朋友们.
This may space station a good place for hunan( )
太空战是一个人类居住的好地方.
I like to work ( ) ( ) when i am older.
当我年龄大一点的时候,我喜欢为我自己工作.