Use the Present Perfect or Present Perfect Continuous tenses. 1. Why is she crying? – She … (hurt) her arm. 2. … they (launch) the spaceship yet? 3. The strong wind… (damage) everything around for 3 hours. 4. What is the result of the tornado? – It … (do) a lot of damage. 5. The scientists … (do) the exploration of the island since they discovered it. 6. They … (not, solve) that serious problem yet, have they?

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