泻白散主治（）

A.外寒里饮证

B.肺热喘咳证

C.风邪犯肺证

D.温病初起

E.外感风邪、邪热壅肺

I forgot to return the book to you yesterday. So I（）today.

A.might do it 

B.must do it

C.had to do it

D.must have to do it