Привет! Давай вместе решим это задание. Нам нужно вставить глаголы в правильной форме:
Greta Thunberg started (start) her climate movement in 2015. Since then, she has traveled (travel) regularly around the globe with her message, and she has met (meet) over fifty world leaders.
Greta’s supporters have set up (set up) nearly 5,000 local groups which have tried (try) hard to get TV and newspapers to speak more about climate change. Many people have said (say) negative things about her, but at least world leaders have given (give) the problem a little more attention recently.
Вот и всё. Теперь текст выглядит правильно!