翻译下列句子。
1. 他过去常常惹许多麻烦。
He used to _____ _____ _____ _____ _____.
2. 这位母亲交不起她的孩子的学费。
The mother couldn't _____ _____ _____ _____ her child's education.
3. 他的妈妈尽可能照顾他。
His mother _____ _____ him as well as she _____.
4. 他对学习不感兴趣，总是惹警察的麻烦。
He was not _____ _____ his _____ and he often _____ _____ _____ with the police.
5. Martin有必要和他的妈妈谈谈。
_____ _____ _____ for Martin to talk with his mother.