the ____so much alike that i can not tell which is which

the ____so much alike that i can not tell which is which The twins are so much alike that i never know ( )is which The twin brothers are so much alike that I can't tell ____ i Who can tell me that the sentence which I wrote is right or They are so alike that you can't tell___ is which.A,what B,w but i must tell you that it is like road which do not have i They are so alike that you can't tell________is which. Is this the river _____ I can swim?A.which B.in which C.that The twin brothers look so much alike .I can hardly tell them The twins are so much alike that it is difficult to tell one i can'tell which is better ,i decideto read___. I want to konw if you can tell me which is the way to...是