I don't know the ____ income of the family,but I do know it

I don't know the ____ income of the family,but I do know it I don't know the __ income of the family,but I do know it is 初中英语题 I don't know the ———— of the family , but I do know it What do you think of the fish?It looks( ),but I don't know i 1.it is a ( )gold watch,but i don't know the ( )price of it. -Do you know when he_ the work?-sorry,I don't know ,but I th I don’t know the man you mention,but of course I know ______ I've lived here foe twenty years,but I don't know the family I don’t know where the key is,but I suppose I _______ it at I'm sorry,but I don't know the answer. I don't know lucy,but I the( )girl I don't(know)the teacher,but I(know about)her.可以换成know about