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OG 9
| 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
又把这题翻出来了。^_^比较让我疑惑的是，为什么不用the one,,而用one....为什么省掉了that..OG的解释我一点也不明白。 |
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