82 고수님 영어 문법 좀 봐주세요.

[학생]

초 4 이구요. 아발론 다니는데요.

초등 문법 좀 봐주세요.

문제 : Choose the incorrect pair of sentences.

a) I didn't hear the phone; otherwise, I would have answered it.
    = If I had heard the phone, I would have answered it.

b) If I should see them, I'll give them your message.
    = Should I see them, I'll give them your message.

c) This sounds like a good chance. If so, you should take it.
    = If you think it is a good chance, you should take it.

d) Without your help, I couldn't have done this project.
    = If you didn't help me, I couldn't have done this project.

d) 가 답인데, 왜 그런가요? d)번 해석도 좀 알려주세요.

[..]

네 도움이 없었다면 나는 이 프로젝트를 해내지 못했을 거다.
앞 부분이 과거 완료형으로 만들어졌어야 맞는 문장입니다.

[Eco]

d) Without your help, I couldn't have done this project.
= If you didn't help me, I couldn't have done this project.


---> 윗분 잘 설명하셨네요.
If you had not helped me, I couldn't have done this project.

[학생]

감사 합니다.
또 모르게 있어 글쓰기 해야 돼요.ㅠㅠ