In a sports team each player has a clearrole，and there arefew occasions members areconfused or uncertain of their roles

______ are you looking for— The key to my bike.

下列四组单词中划线字母发音相同的一组是____。

Only one of these books is worth _______.—_______ is no wonder that you look soupset.

In a few years, there ________ hundreds of trees on the mountain.