―Who is making so much noise in the garden? ―___________ the children.

— I like speaking better than listening in English learning.—Oh, really? I think you should be good at          of them.

 I can’t find my ticket. I think I must have lost_____.

—The books are so nice, which one can I take? —Oh, you can take _______ of them. I’ll keep none.  

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