9 of OG

celeste

OG
9. Astronomers at the Palomar Observatory have discovered a distant supernova explosion, one *that they believe is *a type previously unknown to science.
(A)        that they believe is
(B)        that they believe it to be
(C)        they believe that it is of
(D)        they believe that is
(E)        they believe to be of
e

..explosion,one they believe to be of a type..
(one they believe to be of a type..)是explosion的宾语同位语吗？
（they believe to be of a type。。）是定语从句修饰ONE吗?
补全了是:they believe one to be of a type..?
or they believe one to be one of a type....?


[em02][em02][em02]

tongxun

我认为是。补全了应为：they believe to be one of a type...。