根据句意及汉语提示，写出单词的正确形式。

1．I’ve          (认识到)the importance of learning lessons well．

2．I hope you can pass the          (最后的)exam successfully．

3．If you keep working hard, you’ll           (成功)sooner or later．

4．He got up late this morning and          (错过)the early bus．

5．I told them I was          (真诚的)to help．