When you get into an elevator （电梯），there is a button （按钮） inside.After you press the button，the elevator then takes you to outer space.Does this sound like something from a science fiction film？In fact，it might become（1）　 　in the future.

    Scientists hope（2）　 　the space elevator by 2050.The elevator has a strong cable（缆绳）.The cable connects the elevator to the Space Station.The elevator goes up and down along the cable.The elevator might look like an egg.It can take 30 people.The trip is about 36，000 km.It may（3）　 　eight days to get to space.

    People can only fly rockets into space right now.But they are expensive.A space elevator would be cheaper.It can do more than just take people into space.The elevator can（4）　 　send heavy things into space.A space elevator could make（5）　 　easier to go into space.

（1）A.wonderful	B.real	C.wise	D.fascinating
（2）A.to build	B.build	C.building	D.builds
（3）A.spend	B.cost	C.pay	D.take
（4）A.almost	B.hardly	C.also	D.too
（5）A.that	B.it	C.this	D.it's