大全-86

[CherrieLi]

17.Although just inside the orbit of Jupiter, amateur astronomers with good telescopes should be able to see the comet within the next few weeks.

(A) Although just inside the orbit of
(B) Although it is just inside the orbit of
(C) Just inside the orbit of
(D) Orbiting just inside
(E) Having orbited just inside

答案B, 想請問A跟C哪裡錯呢? B中的 it 是指 comet 嗎?

[dibert8]

(C) (D) (E) although 不見了,改變句意.
(A) although 子句的主詞是 astronomers 句意不合理.