Переведите из прямой речи в косвенную следующие предложения. 1 .не said: "i don't know what exercise to do" 2.she asked: "are you a student? " 3.his father asked: "when do you usually go to school? "

He said he dind't know what excercise to do.
She asked if I were a student.
His father asked when i usually went to school.