One of the best ways for people to keep fit is to ______ healthy eating habits.

I can hardly imagine the difficulty she had ______ enough evidence to prove that she was innocent.

We arrived on the platform just as the train was   . 

Uner good treatment, many patients are beginning to _______ and will soon recover．

---Do you ______ what he told you? ---Yes, in my opinion, he is honest and we all ______him.