---Which of those English-Chinese dictionaries do you like most? ----______.They are both expensive and of little use.      

She owns a lot of books, most of _____ are written in English. 

We all agree that it is good to help those in need, but when ______ comes to giving away our money, things become strange.        

—Which of the two pens are you going to buy?—I’ll buy _____of them, so I can give one to my friend.

______ professional violinist practises for several hours a day , but ______ violinist has his own way of playing the Beethoven concert .