—There is ____ with my watch, so I don’t know the time.

—Let me have a look.

A. something wrong  B. anything wrong  C. wrong something

哪颗牙与相邻恒磨牙的形态相似（）

A.上颌乳尖牙

B.下颌乳尖牙

C.上颌乳中切牙

D.上颌第二乳磨牙

E.下颌第一乳磨牙