Помогите правильно написать текст!!!! Даю 43 балла

Classwork.My friend's grand-parents were born in the USA ,(Дальше не могу разобрать((Что имелось ввиду(на русском)?Бабушка и дедушка моего друга родились в США, где холодно?) where the weather is cold and snowy. In the USA there are lots of farmlands and grasslands,***, mountains, caves and sun. The Mississippi River flows southwards. It rises in northern Minnesota and flows to the south - to the Mississippi River Delta at the Gulf of Mexico . It is an important waterway. Also in the city you can see skyscrapers.