帮我做做下面的英语题.

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 Chicago.An air traffic controller noticed on his radar screen that the two planes were too close to each other.He ordered one to turn to the right and to climb.But he made a mistake.He ordered the wrong plane to do this.So instead of turning away from the second plane,the first plane turned towards it.Fifteen seconds later,it flew directly in front of the second plane.The distance between them was less than that of a large swimming pool.This is an example of the danger that grows every year.
6.Driving a car on a busy motorway is far more dangerous than air travel because ________.
a.the car driver may be drunk
b.a smaller means of transport is more difficult to control than a larger one
c.the traffic on a busy motorway is much more crowded than in the air
d.both B and C
7.Every movement of an airliner is watched on radar screens form the moment _______.
a.it lands ...it takes off
b.its engine starts...it stops
c.it starts flying...it crashes
d.it is made...it is destroyed
8.The air traffic controllers round a busy airport like London-Heathrow_____.
a.give orders to any planes coming near the country
b.handle only the planes that want to land there
c.are allowed to handle 250 planes a day
d.handle all the planes flying near the airport
9.The danger in the air grows every year because ________.
a.airliners gets larger and larger and air itself gets more and more crowded
b.a pilot does not always hear clearly a controller’s order
c.a controller sometimes makes a mistake,thus causing a disaster
d.not all pilots listen to air traffic controllers
10.Which of the following statements is TRUE?
a.Recently two large jets from Chicago almost crashed into each other.
b.The air traffic controller intended to order the plane on the left to turn right
c.The two planes narrowly missed a terrible disaster.
d.If the controller had not made the mistake,the plane crash would have been avoided