下列除哪项外，均可出现口臭

A．龋齿
B．心火
C．胃热
D．宿食
E．内痈

--- What did the teacher say to you just now?

--- She asked me _______________.

A．whether I had finished my work

B．if had I finished my work

C．that I had finished my work

D．how long had I finished my work