Срочно Английский плиз

1ex
1.How many letters have been written yet?
2.The shortest way to the station was showed him.
3.By six o'clock work of workers had been already finiched.

2ex
1.My mother said she thought i should eat more vegetables.
2.His father said to him went to bed now
3.The teacher asked us if we liked computer games
4.Dave asked Jane what she had done yesterday