شرکت در آزمون آنلاین انگلیسی 3 - انگلیسی 3 | آزمون شماره 10390
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Since the first artificial satellite, Sputnik 1, was launched by Russia in 1957, thousands of space probes, satellites, and telescopes … into space.
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It is surprising for everyone that in ۲۱ century we have a lot of deaths in ................... to tribal problems.
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All that we children can do is .......... the mistakes of our parents; after all, no human being is perfect.