【单选题】The title of the book was on the ______ of my tongue, but I just could not think of it.
                    
A.end
B.tip
C.back
D.point
                
							【单选题】The title of the book was on the ______ of my tongue, but I just could not think of it.
                    
A.end
B.tip
C.back
D.point
                
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