The underlined structure in the excerpt “the reasons behind ...
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Q2101807
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![texto_13 - 19 .png (765×465)](https://qcon-assets-production.s3.amazonaws.com/images/provas/92166/texto_13%20-%2019%20.png)
The Bizarre Story of the Swedish Warship “Vasa”
![texto_13 - 19 .png (765×465)](https://qcon-assets-production.s3.amazonaws.com/images/provas/92166/texto_13%20-%2019%20.png)
(Available at: https://www.smithsonianmag.com/smart-news/bizarre-story-vasa-ship-keeps-giving-180964328/
– text especially adapted for this test).
The underlined structure in the excerpt “the reasons behind the instability have
remained a point of debate over the centuries” (l. 11-12) is in the present perfect tense. Considering
this verb tense uses and the context in the article, we can say the action is/was: