Compléter Verbs TensesVersion en ligne Fill the blanks with the verb in its correct form. par Paula Ayala 1 This century could ( see ) the Arctic Ocean without the cap of sea ice during the summer . A new study ( conclude ) that an open - water Arctic in summers could be more likely in this century than had been ( stimate ) in the latest international review of climate research ( release ) in February . The largest area of sea ice can be ( see ) in September . The maximum and minimum area of Arctic sea ice , which typically ( expand ) most in March and ( shrink ) most in September . Since the fifties , the area of sea ice is ( decrease ) at a rate of more than 7% every ten years . Dr . Stroeve ( find ) that since 1953 the area of sea ice in September has declined at an average rate of 7 . 8 per cent per decade .
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