People have been interested in the stars since they f_____ looked up into the sky.Some of these stars may have t_____ ow
问题描述：
People have been interested in the stars since they f_____ looked up into the sky.Some of these stars may have t_____ own planets.The nearest star is four light years a_____.In other words,lights from the nearest star has been traveling for four years when it f______ reaches us.Probably nobody from the earth will e_____ visit that star because it would take a rocket a hundred thousand years to r________ it.
答
first their away finally eventually reach