He was able to finish his book. It was because his...

Câu hỏi: He was able to finish his book. It was because his wife helped him.

A. If it weren’t for his wife’s help, he couldn’t have finished his book.

B. If only he had been able to finish his book.

C. Without his wife’s help, he couldn’t have finished his book.

D. But for his wife’s help, he couldn't finish his book.