Read the text below and fill up the gaps with suitable expressions from the options. There are more options than necessary. You may change the form of expression if necessary. emerge mystery communicate device maintain around specify move greatly astronomy regard send Satellite is one of the greatest inventions of modern science. It has contributed (a) _____ to the (b) _____ of modern civilization. A satellite is a man-made (c) _____ which is sent to outer space. It moves (d) _____ the earth and explores the (e) _____ of space outside the earth. There are different types of satellites and each of them serves a (f) _____ purpose. A satellite sends us important information (g) _____ weather condition. It helps an aeroplane to (h)_____ its path. An (i) _____ satellite monitors (j) _____ of stars in the outer space.