https://www.nytimes.com/1985/08/27/science/science-watch-new-kind-of-supernova.html?nytmobile=0Two astronomers using the 200-inch telescope at Palomar Observatory, Calif., have stumbled on a distant supernova explosion - one
they believe to be of a type previously unknown to science.
Choice E is best. The pronoun
that in A and B should be deleted, since the pronoun
one is sufficient to introduce the modifier and the sentence is more fluid without
that. In B and C,
it and
that it are intrusive and ungrammatical: the idiom is “believe x to be y.” In the context of this sentence, the infinitive
to be is more appropriate than the limited present-tense is in referring to an event that occurred long ago but has been discovered only recently. Finally, A, B, and D lack
of and so illogically equated this particular explosion with the whole class of explosions to which it belongs: it is not
a type but possible one
of a type.
Among the emotions on display in the negotiating room
were anger for repeatedly raising the issue over and over again and preventing the raw wounds from earlier battles from ever beginning to heal.
(A) were anger for repeatedly raising the issue over and over again and preventing the raw wounds from earlier battles from ever beginning to heal
(B) was anger for repeatedly raising the issue and preventing the raw wounds from earlier battles from ever beginning to heal
(C) were anger over repeatedly raising the issue and preventing the raw wounds from earlier battles to begin healing
(D) was anger about the issue, which was raised over and over, and preventing the wounds from earlier battles, still raw, to begin healing
(E) were anger about the issue, which was raised repeatedly, and preventing the raw wounds from earlier battles to begin to heal