Проверьте, , правильно ли написаны предложения. если есть ошибки, скажите где: i did not go this summer on the sea. but i spent many of times with my grandmother. i helped her in the kitchen garden and in the house. i often walked with my young brother. i engaged the chemistry, read the book, watched tv in the free time. at first was rainy weather, then it was sunny. however i liked this summer.

 I did not go to  the sea this summer. But I spent much time with my grandmother. I helped her in the kitchen garden and in the house. I often walked with my young brother. I engaged Chemistry, read books, watched TV in my free time. At first there was rainy weather, then it was sunny. However, I liked this summer.

I did not go on the sea this summer. But I spent a lot of time with my grandmother. I helped her in the kitchen, garden and in the house. Also I walked with my young brother. I engaged in chemistry, read books, watched TV. It was rainy weather at first, but then it was sunny. However I liked this summer.