Gạch chân lỗi sai ở mỗi dòng trong đoạn văn sau rồi sửa lại

Gạch chân lỗi sai ở mỗi dòng trong đoạn văn sau rồi sửa lại :
Nam is a student. This year he had a very interested summer holiday.  He traveled , with him classmates , to a mountainous area in Hoa Bình province . They gone there to help make a road through a forest among two villages . "Ít was very difficult because there had no water to drink and no shops where we could bought food , " said Năm . " Ít was very cold and wet in the mountains . Ít is one of the wetter places in the country". Nam stayed in the mountains since six weeks . It was hard work,  but he says it was the best thing he has ever did . He is hoping to return next year to do any more work there
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