1. where he (to be) now? — he (to be) in the garden. he (to play) volley-ball with his friends. they (to play) since breakfast time. 2. i (to live) in st. petersburg. i (to live) in st. petersburg since 1990. 3. this man (to be) a writer. he (to write) books. he (to write) books since he was a young man. he already (to write) eight books.4 lena is a very good girl. she always (to help) her mother about the house. today she (to help) her mother since morning. they already (to wash) the floor and (to dust) the furniture. now they (to cook) dinner together. исправить

1. Where is he now? He (is) in the garden. He (is playing) volley-ball with his friends. They (have been playing) since breakfast time.
2. I ( live) in St. Petersburg. I (have lived) in St. Petersburg since 1990.
3. This man (is) a writer. He ( writes) books. He (has been writing) books since he was a young man. He has already (written) eight books.
4 Lena is a very good girl. She always ( helps) her mother about the house. Today she (has been helping) her mother since morning. They have already (washed) the floor and ( dusted) the furniture. Now they (are cooking) dinner together.

I like sport. It plays a great role in my life . Most of all I like to play basketball. I am a very good player and often take part in different sport competitions. Sometimes we win them but sometimes we lose. I like playing basketball most of all. And I am a basketball fan too. I enjoy watching matches on TV and at the gym. I have been to the gym. It was the greatest game I have ever seen.
Я люблю спорт. Он играет большую роль в моей жизни. Больше всего я люблю играть в баскетбол. Я очень хороший игрок и часто принимаю участие в различных спортивных соревнованиях. Иногда мы побеждаем, но иногда мы проигрываем. Мне нравится играть в баскетбол больше всего. И я также фанат баскетбола. Мне очень нравится смотреть матчи по телевизору и в спортзале. Я был на матче в спотрзале два раза. Это было здорово.

Hi, how are you? I hope you're okay. We Chelyabinsk today is a good weather. In our city lives approximately 1 198 858 people. Unfortunately today Chelyabinsk is a serious environmental problem. Nevertheless, Chelyabinsk is one of the largest cultural, economic, business and industrial centers of the Urals, where the industry makes up 35.1 % of the gross municipal product.
Перевод:
Привет, как дела? Надеюсь ты в порядке. У нас в Челябинске сегодня хорошая погода. В нашем городе живёт примерно 1 198 858 человек. К сожалению сегодня Челябинск имеет серьёзные экологические проблемы.  Тем не менее, Челябинск является одним из крупнейших культурных, экономических, деловых и промышленных центров Урала, где промышленность составляет 35,1 % от валового муниципального продукта.
Можете что-то убирать, на своё усмотрение.