题目

帮我做做下面的英语题.
Today,air travel is far safer than driving a car on a busy motorway.But there is a danger that grows every year.Airliners get larger and larger.Some can carry over 300 passengers.And the air itself becomes more and more crowded.If one giant airliner crashes into another,600 lives could be lost.
From the moment an airliner takes off to the moment it lands,every movement is watched on radar screens.Air traffic controllers tell the pilot exactly when to turn,when to climb and when to come down.The air traffic controllers around a busy airport like London-Heathrow may handle 2500 planes a day.Not all of them actually land at the airport.Any plane that flies near the airport comes under the orders of the controllers there.Even a small mistake on their part could cause a disaster.
Recently,such a disaster almost happened.Two large jets were flying towards the airport.One was carrying 69 passengers and had come from Toronto.The other was carrying 176 people from Chicag

提问时间：2020-08-10

答案

6 c 7 c 8 a 9 a 10 d