Поставь предложения в косвенную речь 1.she said: " it is cold." 2.they said : " plants pollute the air." 3.he said: " the bire burnt the house." 4.i said : " she didn't collect the litter." 5. she said: " i have just taken my exam." 6.they said: " we will do our recycling project tomorrow."

1.She said that it was cold. 
2.They said that  plants polluted the air. 
3.He said the fire had  burnt the house.
4.I said that  she hadn't collected the litter. 
5. She said that  she had just taken her exam. 
6.They said they would do their recycling project the next day.