She helped us a lot with our project. We couldn’t continue without her. A. Unless we had her contribution, we could continue with the project. B. But for her contribution, we could have con

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She helped us a lot with our project. We couldn’t continue without her.

Unless we had her contribution, we could continue with the project.

But for her contribution, we could have continued with the project.

If she hadn’t contributed positively, we couldn’t have continued with the project.

Provided her contribution wouldn’t come, we couldn’t continue with the project.

Giải thích

She helped us a lot with our project. We couldn’t continue without her.

C. If she hadn’t contributed positively, we couldn’t have continued with the project.

Cấu trúc câu điều kiện loại 3, trái ngược sự thật ở quá khứ