It is Lucy's dictionary(改成否定句)
连词成句
think,i,pencil,it,his,is
know,you,do,how,him
not,is,this,gold,ring,my
in,the,that,your,and,lost,found,case,key,is
參考答案:It is not Lucy's dictionary.
I think it is his pencil.
How do you know him.
This is not my gold ring.
The case key in that lost and found is your.