-- Mum, will you buy me an MP3 player?
-- I'm afraid I__________, dear. We are short of money now.
A. can't B. mustn't C. shouldn't D. needn't
-- Mum, will you buy me an MP3 player?
-- I'm afraid I__________, dear. We are short of money now.
A. can't B. mustn't C. shouldn't D. needn't
A