The grass on the lawn will be changed with the new grass from 1st May,2009 to 30th June,2009.我要表达的意思是：草坪将从5月1日至6月30日施工换草

sheep f____ on the grass . in the grass on the grass怎么区分? 草丛里有条蛇是on the grass还是in the grass? Sit on the grass.还是 Sit in the grass? in the grass 与on the grass的区别 the sign on the grass是什么意思 in the snow还是on the snow,in the grass还是on the grass don't walk on the grass=? on the grass 用中文怎么说 What can you see on the grass? Don't_____（践踏）on the grass. walk on the grass的意思 Peter,__________(not walk) on the grass. The sign on the grass mensKeep off the grass.(改为一般疑问句,画线部分提问：keep off the grass) The sign on the grass mensKeep off the grass.(改为一般疑问句,画线部分提问：keep off the grass) hould walk on the grass.（改为否定句) You_____ _____ walk on the grass. Don't walk on the grass 改为同义句---walk on the grass Don't walk on the grass.You ____ _____walk on the grass