I think          important for us to learn a foreign language well.　　

 _______ my book , _______ your book.

 – Which of the two coats will you take? – I will take ________. One is for my brother and the other is for myself.

— How pleasant 　　　 is to go fishing with my father! — Yes. Parents and children should spend more time together. 

There are many tall trees on _______ side of the road.