问答题 What are the noun forms of these adjectives? Only write down the ones which are unfamiliar or which you're unsure of. calm careless cheap friendly helpful late loud serious confident intelligent patient different capable flexible formal possible probable popular real reliable scarce sincere

【正确答案】calmness carelessness cheapness friendliness helpfulness lateness loudness seriousness confidence intelligence patience difference capability flexibility formality possibility probability popularity reality reliability scarcity sincerity

【答案解析】