—Could you please come to the museum with me this afternoon?
—Sorry,I ________.I have to take a piano lesson at 2 pm.
A.couldn’t B.mustn’t C.can’t D.needn’t
—Could you please come to the museum with me this afternoon?
—Sorry,I ________.I have to take a piano lesson at 2 pm.
A.couldn’t B.mustn’t C.can’t D.needn’t
C