Переделатьпредложения в present perfect simpl или в present perfect continuous. use the present perfect or present perfect continuous tenses. why is she crying? – she … (hurt) her arm. … they (launch) the spaceship yet? the strong wind… (damage) everything around for 3 hours. what is the result of the tornado? – it … (do) a lot of damage. the scientists … (do) the exploration of the island since they discovered it. they … (not, solve) that serious problem yet, have they?