Black () all his energy to his experiments,because he wanted

Black () all his energy to his experiments,because he wanted 老师，我第（92）问是这样回答的您看对不对？ Because he wanted his friend to d the poor guy has to go back home because he ________ all his 高一英语选择He made _____ experiments to prove his theory and the He wanted to be left alone to () his business． I wanted to know.Is he doing his homework He wanted to see one of his friends there. He wanted to keep it s____from his family. Tom () his homework yesterday,because he was in hospital all The project he had devoted all his energy to____for some rea [-B60] He _____ his experiments and made a great contributio does he clean up his room first his friend wanted to know?