用所给词的正确形式填空
小题1:I’m very (interest) in that (interest) story.
小题2:You are (suppose) to shake hands when you meet a Chinese friend.
小题3:A knife is used for (cut) things.
小题4:The Yellow River is the second (long) river in China.
小题5:The boy is old enough (dress) himself.
小题6:December is the (twelve) month in a year.
小题7:I decided (talk) to my parents about it .
小题8:We stayed there for a long time without (say) a word.
小题9:I have five (knife).
