根据对话语境，从所给句子中选出能填入每个空白处的选项，使其完整。

M：Why do you look unhappy these days?

W：Because    (1)

M：Are you serious? Is it true?    (2)

W：I don’t care about the scores，but I didn’t find out    (3)．Maybe I don’t work hard．

M：    (4)

W：Yes．1 spent the whole weekend on my lessons．

M: You’d better     (5)

A．Did you study hard for the exams?

B．I feel very sorry for you．

C．Why I failed the examination

D．I failed in the biology(地理)and biology(生物)examinations．

E．ask the teacher for advice．