44,54,65,77,()
A.91
B.90
C.89
D.88
44,54,65,77,()A.91B.90C.89D.88
44,54,65,77,() A.91B.90C.89D.88
44,54,65,77,______ () A.91 B.90 C.89 D.88
44, 54, 65, 77, () A.91 B.90 C.89 D.88
27,29,33,41,57,() A.87 B.88 C.89 D.91
44,54,65,77,()。 A.91B.90C.89D.88