The airport has just come into use中的has有什么用?可以去掉吗?

The airport has just come into use中的has有什么用?可以去掉吗? I just came back from the airport The plane landed at the airport ( )(live)just the airport has been in_____(服务）since 1998 The plane has ____ off form Beijing Capital Airport. The piane has just landed 几道英语题,大家帮忙解析一下1. the goods_____when we arrived at the airport.Awere just unloading B had just unloadedC were just being unloaded D were just been unloaded2.the wind _____heavily last night.A blew B was blowing C has blown Luckily,I arrived at the airport just --------the plane took off. 关于come into的用法在新2里的一道题,the airport (c).选项c是come into use recently 选项d是has just come into use 为什么不能选择d啊 The goods______when we arrived at the airport.A.The goods______when we arrived at the airport.A.were just unloading B.were just been unload C.were just being unloaded D.had just unload we arrived at the airport with just 20 munutes spare句子成份 we arrived at the airport with just 20 minutes to s__.. 求杨浦区2011年初三英语模拟练习TF题,不是和崇明县一起的Have you ever traveled by plane?What do you usually do when you wait for your plane?Amsterdam's (阿姆斯特丹) Schiphol Airport has just opened the world's first airport l The train has just left the station.可不可以写成The train just has left the station. The mission has just started是什么意思 As a result of the heavy rain,the airport has been closed up until further confident in the tools the airport has implemented and reminds passengers there are security measur has just The bell is ringing=The bell has just rung中“has just rung”该怎么翻译呢