胚胎甲状舌管咽端遗迹为（）。

A.舌盲孔

B.舌背

C.舌根

D.甲状腺峡部

E.舌体

补全对话。

A: Hi, Tina. You look stressed out.

B: I am. I had a bad morning.

A: Really?     1          2    ?

B: Well, first of all I    l3   . By the time I     4     up, my brother    5    

already     6   in the shower.

A: What a pain!

B: So, after he got out of the shower. I took a    7   shower and got dressed. But by the time I went

outside, the bus    8    already   9    .

A: Oh, no!

B: Oh, yes! So I ran all the way to school. But when I got to school, I    10   I had left my backpack

at home.

1.              2.               3.                 4.              5.                

6.              7.               8.                9.               10.