下列句子中“以”字的用法不同于其他三句的一项是

Learning that their only son was sound and safe _____ the family ______[ ]

Can you help me with it–Sure. It’s so easy. can do it, I think.

hought that after starring in the immensely popular drama, Nirvana in Fire, Hu Ge would____and actively seek new roles.

Tom likes helping others, so he is a ________boy.