Anna

Not only do all of us try to eat healthy food, but all of us also finished our homework last Friday. Moreover, in this year we will learn English language very well. In addition, we have stayed at home because it is cold outside and we would like to travel to Africa. 


Anna, you did this well. In fact, there is only one minor error. "This year" is correct. "In this year" is incorrect."

If you give the name of the month or of a season, you can use "in" (in January, in winter), but there is no "in" if you use "this" or "last" or "next." ("next summer, next July," but not "in next summer" or "in next July." Like every language in the world, English has a lot of small problems like this. My advice is not to worry about them. Little by little, you will learn the right way.