Исправит ошибки: he has translating the book for three days. mr. wilson couldn't to phone back at six o'clock. if i'll speak to him tomorrow, i'll ask him about his plans. if i was rich, i would help the poor animals. if he has done his homework yesterday , he wouldn't have got a bad mark.

He has been translating the book for three days.
Mr. Wilson couldn't phone back at six o'clock.
If I speak to him tomorrow, I'll ask him about his plans.
If I were rich, I would help (the) poor animals.
If he had done his homework yesterday, he wouldn't have got a bad mark.