下列各句中，加横线的成语使用不恰当的一项是（ ）

Which of the following underlined parts is different in pronunciation from the others

He is_______ usual man but last week he did _______unusual thing——saving a boy out of water.

is the man, do you know— I don’t know exactly. But I think he can be _______ but a teacher.

do you think of your part-time job in the summer vacation —Well, the work is , but I feel happy when I can make money using my hands.