SAFETY COMES FIRST
Many teenagers these days 1) use buses and trains to get
around. Instead, 2) choose bikes, skateboards, scooters
and even rollerblades to travel to their destination. In the past,
teenagers only used these things to play in the park or in sports
competitions, but now it's a new craze to use them as a means of
transport
These 3) good forms of exercise, but accidents can happen,
so you must pay attention to a few rules of the road. First, you must
always use proper safety equipment such as knee and elbow pads
4) helmets. When possible, try to stay on 5)
pavement and ride slowly. Also, never wear headphones, don't ride
too close to parked cars and always get off 6) skateboard,
bike or scooter and walk at pedestrian crossings. Finally, you must
never use a moving vehicle to pull you along!
Skateboarding, rollerblading or other activities are good ways to
exercise and a lot of fun. Just remember to pay attention and stay
safe when 7) are out and about!​

The Thanksgiving Day is a national american celebration. It originates long time ago. If I`m not mistaken, When the first people started began to settle the land of America, they didn`t have any food and probably they would deie because of hunger. If not the indians, who gave them food. It is assumed that the first food that people got from them was turkey, corn, pumpkin and maple syrup. 
In our days people in America still celebrate Thanksgiving day, mentally thank the God and that indians and eat turkey as a traditional meal on this day.

День Благодарения - национальный американский праздник. Он берёт начало с давних пор. Если я не ошибаюсь, когда первые колонии стали заселять Америку, у них совсем не было еды и, возможно, они бы умерли от голода. Если бы не индейцы, которые дали им еду. Принято считать, что первая еда, которую получили люди - это индейка, кукуруза, тыква и кленовый сироп.
В наши дни люди в Америке до сих пор празднуют День Благодарения, мысленно воздают благодарность Богу и тем индейцам и едят индейку в качестве традиционного блюда в этот день.

Are you leving party now?  Present continiuos
Do you love him? Present simple
Have you ( or have you got )  brothers or sisters? Present Simple
Who cooks dinner tonight а здесь допустимо и Present Simple, и Present Continiuos, англ язык, к сожалению, богат на такие двойственности Who is cooking dinner tonight?
Does he send you an e-mail every day? Проверьте свой текст если send, то так, как я указала выше. Если sent, то Did he send you an e-mail every day? На 4 предложении настаиваю на варианте Who is cooking dinner tonight?