People often buy something on weekends.改为同义句 People often( )( )on weekends.
另外一题：Today is rainy and cold.改为同义句
It is a ( )()( )tody.多谢!
第二题打错了，应是这样：Today is rainy and cold.改为同义句
It is a ( )()( )() today. 多谢！！