The flowers will die if you don't water them.2.The boys try to clean the window up______________________________________3.It is not difficult for me to climb the mountain______________________________________2.The window is tried to be cleaned up by the boys.3. Climb the mountain is not difficult for me.1、I calledJohn and asked for help.______________________________________2、I like travelingverymuch.______________________________________也是改同义句吗？嗯，謝謝你給我的答案不谢1.I calledJohn for help.2.I like to travel very much.