Пожвйлуста решить 4 предложения перевести в косвенную речь; 1)frank : we had an ecology class yesterday. 2)chris : do they really understand that ? 3)chris: and will they win these battles? 4)frank: dont't lose hope. заранее ☺

1)Frank said they had an ecology class the day before yesterday. 4)Frank said not to lose hope.

Frank said that that they had been an ecology class the day before
Chris asked if they really understand that
Chris asked wether they should win these battles
Frank told that not to lose hope