Which of the following is NOT grammatic… | [국회직 8급 영어] 21년 1회차 기출문제 상세 페이지

Which of the following is NOT grammatically correct?
The distance to the stars can seem unfathomably immense. Physicist Freeman Dyson at Princeton suggests that, ①to reach them, we might learn something from the voyages of the Polynesians thousands of years ago. Instead of trying to make one extended journey across the Pacific, which ②would likely to have ended in disaster, they went island hopping, spreading across the ocean’s landmasses one at a time. ③Each time they reached an island, they would create a permanent settlement and then move on to the next island. He posits ④that we might create intermediate colonies in deep space in the same way. The key to this strategy would be the comets, which, along with rogue planets that have somehow ⑤been ejected from their solar systems, might litter the path to the stars.

①

②

③

④

⑤

어법상 틀린 것은 “would likely to”이다.
조동사 would 뒤에는 동사원형이 와야 하므로 부사 likely를 살려 “would likely have ended”로 고쳐야 한다. likely를 형용사로 쓰려면 was likely to have ended처럼 be동사가 필요하다.
“to reach them”: 목적을 나타내는 to부정사로 바르고, them은 the stars를 받는다.
“Each time they”: Each time이 접속사처럼 쓰여 절을 이끈다.
“that we might”: posits의 목적어가 되는 명사절로 바르다.
“been ejected from”: 행성이 내쫓기는 대상이므로 have been p.p.의 수동태가 맞다.