The new airport has been in _____ (useful) for ten months.Now the small park has turned into a _____ (centre) park.In the past ,there ____ (be) no people in this place.I will tell him the good news as soon as he ____ (come) back.

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Thenewairporthasbeenin_____(useful)fortenmonths.Nowthesmallparkhasturnedintoa_____(centre)park.Inthe

The new airport has been in _____ (useful) for ten months.Now the small park has turned into a _____ (centre) park.In the past ,there ____ (be) no people in this place.I will tell him the good news as soon as he ____ (come) back.
The new airport has been in _____ (useful) for ten months.
Now the small park has turned into a _____ (centre) park.
In the past ,there ____ (be) no people in this place.
I will tell him the good news as soon as he ____ (come) back.

The new airport has been in _____ (useful) for ten months.Now the small park has turned into a _____ (centre) park.In the past ,there ____ (be) no people in this place.I will tell him the good news as soon as he ____ (come) back.
use
central
were
comes

1use
2central
3were
4comes

The new airport has been in useful for ten months.
Now the small park has turned into a central park.
In the past ,there were no people in this place.
I will tell him the good news as soon as he comes back.

第3个不对吧~用完成时也应该是have been啊?!
而且个人认为应该填was~

我也觉得第三个应该是was，people在此指的是人类单数/

1.Tom has bought a new car.Sue has bought a new car too.(改为同义句) Tom has bought a new car.________ ________ ________.2.We began to use the airport in 1998.(改为同义句)The airport ________ ________ ________ ________since 1998.3.Simon got the airport has been in_____(服务）since 1998 The plane has ____ off form Beijing Capital Airport. 1.Simon has finished his homework a moment ago 2.Hong Kong's new airport has been in service since By the time you get to the airport,she_ for New Zealand.A.would be leaving B.has already left C.is leaving D.will have left为什么不选B what does the newspaper sayIts reported that a new airport …twenty miles from the city now.A is being constructed B is constructed C has constructed D was being constructed The airport has just come into use中的has有什么用?可以去掉吗? Yesterday she went to the new airport by taxi.的同义句 There will be an increase in noise when the new airport There is _________ airport in Pudong New Area.A a B an C the The new password has been set 英语 the new machine has been tested he has a keen of the new 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 The new airport has been in _____ (useful) for ten months.Now the small park has turned into a _____ (centre) park.In the past ,there ____ (be) no people in this place.I will tell him the good news as soon as he ____ (come) back. The airport has been in s____since 1998.横线上应该填什么单词? The Airport Railway has been _____mid-1998.A.operating B.operate C.operated D.to perate