练习 动词、介词、冠词、物主代词等词后一般接名词或动名词 , 如果所给是其它词类 , 就要将其改为名词 , 并注意名词数的变化。 (1)Do you know the ______ (deep) of the river? (2)His _____ (careful) resulted in the terrible accident (3)He is one of the ______ (science) who support this theory. (4)Please pay ________ (attend) to your handwriting.