Подскажите как с первым заданием, пожалуйста

1) He said that he was busy.
2) She said to her that she had seen the film she had recommended her the night before.
3) Lucy said that she hadnt agreed with me.
4) Nick said that he had invited some boys to his birthday party.
5) He said that he was going to Spain the following week.
6) He said that water freezes below 0 °C.
7) She said that she had saved enough money to buy a present for her mother.
8) Lucy said to me that she would come to see you the next day.
9) He said to her that he if he finished his work that evening.
10) She said that she had brought some fruit.
11) The traveller said that he would reach the top of the mountain.
12) She said to her that she had seen the day before but he hadnt recognized her.