Who studied Uranus?
NO! Earth is the ONLY planet that can have life!! Uranus is 1,783,950,480 miles from the sun, which means it is IMPOSSIBLE for any life to be found there. Though, in recent years Mars has been studied to be suitible for life, but little progress has been made but all scientist agree that Mars could be our next home.
'have studied' or 'has studied' I have studied you have studied (singular) he, she or it has studied we have studied you have studied (plural) they have studied Some examples (using abbreviations) are: I've studied more than enough science. The trainees have really studied hard. She has studied just enough to pass the test.