下面哪一项不属于牙内陷（）。

A.畸形舌侧尖

B.畸形舌侧窝

C.畸形根面沟

D.畸形中央尖

E.牙中牙

—How is it that you know she’s got back from the UK?

—She ____ when I came out of the house this morning.

A．seemed to be passing

B．happened to have passed

C．chanced to be passing

D．chose to be passing