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英语完形填空 SOSOSOSOSOSOSOS!1

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英语完形填空 SOSOSOSOSOSOSOS!1
阅读下面的短文,根据其内容从所给单词或词组中选出10个,并以适当形式填空.
use,want,distant,spaceship,of explore,photo,so far,awaste of money,which,or
短文如下:
People have been interested in the planet Mars since ancient times.Because ot the (1 )of Mars from Earth,sending a manned rocket to the planet isn't possinle today.For the time being,exploration of Mars is limited to unmanned (2 ).
There have been several spaceships which have flown past Mars and sent (3 ) back to Earth,but(4 )only a few have actually landed on the surface.The most famous (5 )these missions was the Mars Pathfinder,(6 )was launched in 1969 and landed on Mars in 1997.Pathfinder,which was like a robot car,was able to conduct a lot of (7 )research before it stopped working.
Some people think that speace(8 )and,in particular,sending speaceships to other plantes,is (9 ).However,(10 ) think taht the technology that is created,and the information taht is landed,is necessary for man's future.
1 distance
2 spaceships
3 photos
4 so far
5 of exploring
6 which
7 wanted
8 a waste of money
9 useless
10 o