30．-Mum． I go out to play? -Yes．you can．But you must finish your homework first． A．must ——青夏教育精英家教网—

摘要：30．-Mum． I go out to play? -Yes．you can．But you must finish your homework first． A．must B．may C．will D．need

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－Mum, ________ I go out to play table tennis?