Составь предложение. срочнооооо пж помогитееее напишите всё подробно и понятно как и здесь пж Прошу

1) I wrote a letter to my sister
2) He did not repair his bike last Saturday 
3) It will be cloudy and windy tomorrow
4) Does she cook lunch and breakfast?
5) Where did they skate?
6) Why were the children happy?