—Would you like to go for a walk with us?    

—________ but I have to write a letter to my pen friend now.  [ ]

A. Of course not    

B. That's all right    

C. I'd love to    

D. Yes, I do

Which tool is used to open the strands of fiber lines when making an eye splice?（）

A.Belaying spike

B.Fid

C.Heaver

D.Pricker