句型转换。在横线上填入适当的词，使上下两个句子的意思相同。

1. The school looks after the health and happiness of its students.

    The school looks after the _____ of its students.

2. After the accident, her parents took good care of her until she was better. 

    After the accident, her parents _____ her until she was better.

3. She gave birth to a baby boy this morning. 

    She _____ a baby boy this morning.

4. She watched attentively her child's behaviour. 

    She _____ her child's behaviour. 

5. The hard work was useful enough because I passed the exam. 

    The hard work was _____ because I passed the exam.