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

A. My son has got a bad habit of smoking.

B. The old man always wears his blue hat.

C. He was standing by the gate waiting for her mother.

D. When she heard the news, she laughed happily.

--______ man is your English teacher?

-- The man in black.

A．What             B．Which            C．Who             D．Whose

Which picture shows that the man is walking past the police station?

A.        B.    C.        D.

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