根据对词类的概念的理解,指出下面单词的词类:名词、动词、代词、介词、冠词、形容词、副词、数词、连词 1 deep() 2 finger() 3 fly() 4 papers() 5 pass() 6 refuse() 7 size() 8 friendly() 9 delicious() 10 thick() 11 hardly ()12 map() 13 myself() 14 and ()15 on() 16 five() 17 ship() 18 mine() 19 important() 20 an()