Правильно ли построено предложение?

зробіть усі інші необхідні зміни. Перекладіть речення українською мовою:

These radio station broadcast educational programs.

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 learn english because i want get a better job.
the best way to learn is not be lazy.
useful learning strategies is watch english movies.
a good language learner is speaks fluently.