1,pollution污染
2,possible
1,by himself
2,One day
八下填空题
1.When water becomes dirty.We call it water ( ).
2.You must speak English as often as ( ).
同义句转换
1.Last Sunday he went to see his grandmother alone.
Last Sunday he went to see his grandmother ( ) ( ).
2.Some day I hope to visit Central Park.
( ) ( ) I hope to visit Central Park.
1,pollution污染
2,possible
1,by himself
2,One day