先天性外耳道闭锁是源于（）

A.第1鳃沟发育障碍所致

B.第1鳃弓发育畸形所致

C.第2鳃弓发育畸形所致

D.第3鳃弓发育畸形所致

E.第1、2鳃弓发育畸形所致

----What did your dad tell you, my baby?

----He said the sun _______ in the east.

A．went up

B．will go up

C．goes up

D．is going up