– Which of these two English books will you borrow? – I’ll borrow     of them. Because they are very interesting. 

--- When shall we meet again?                   --- Make it __________ day you like. It’s all the same to me.

— Would you like tea or water?— _________ is OK. I really don't mind.

I found ___________ hard to remember all the twelve star signs because they are difficult to pronounce(发音) and spell. 

—Who is the man over there?—He is an old friend of _________ .