Find one word whose underlined part is different from others（下组单词中，有一个单词划线部分的读音与其他的不同，请找出来）

[　　]

A．come　　B．close　　C．nose

Find the word whose underlined part has the same sound as the given word(下组单词中划线部分发音有一个与所给单词相同，请找出来)

book

[　　]

A．school　　B．choose　　C．foot

Find the word whose underlined part has the same sound as the given word(下组单词中划线部分发音有一个与所给单词相同，请找出来)

face

[　　]

A．clock　　B．pencil　　C．coconut