1)The kids were playing football in the street.
2)I gave him an interesting book for his birthday.
3)Jim was doing housework when he heard the news on the radio.
4)Despite the fact that they lost the first three games, Manchester United went on to win the cup.
5)Our car broke down on the motorway near London.
6)She really hates going to discos with her workmates.
7)My neighbours' car was stolen from the parking lot yesterday.
8)Mark can drive us to the party tonight; his parents allowed him to take their car.
9)He is a very trustworthy person; you can always rely on him.
10)The book that they recommended to me was actually very good.
I LIKE WALKING VERY MUCH. Так будет лучше.
One of the goals for the summer IS to walk more. В английском языке двоеточие (и тире) не используются так, как в русском, то есть вместо это.
IT BECAME A DAILY THING not so long ago. Вместо "I got into the habit" лучше использовать "It became a daily thing" ("Это стало обыденностью"), то есть ты делаешь эту вещь каждый день.
THIS HELPS /you/ TO gain strength, confidence and energy for the whole day. Считай, ты не обращаешься к кому-то, you здесь просто не нужно.
I want to start PLAYING TENNIS and DANCING. Ты не делаешь теннис и танцы :D