初二英语选词填空
close stay interest travel life
You probably know a lot about the city you live in.You may even know some __________facts baout our earth.But hou much do you know about Mars(火星),the planet(行星) where many think there may be ______?
The first spacecraft,Mariner 4 from America,got a _____look at Mars on November 28,1964.
NASA,Nation Aeronautics and Space Administration(美国国家宇航局),sent two robots to Mars in Juen and July.In January 2004,they _______ to Mars at some 12000miles per hour.The two robots then began a 3 month _________to look for evidence(证据)of water and life from Mars.