Viết lại câu sau dùng từ nối trong ngoặc: Thank you very much for your help. My book couldn't have published without your help. (without which)

Câu viết lại như sau: "Thank you very much for your help. My book couldn't have been published without which your help is considerable." Tuy nhiên, câu sau sẽ phù hợp hơn: "Thank you very much for your help. My book couldn't have been published without your help." Hoặc viết theo từ nối trong ngoặc (without which): "Thank you very much for your help. My book couldn't have been published without which, in my opinion, your assistance played a significant role."