Beijing is one of the ____ in the world today.

--- How tall the boy is! --- Yes, he is taller than __________ in his class.

 We should eat _______ fruit and vegetables, but _______ meat. It is good for our health. 

 Now people would like to use _______ plastic bags to help protect the environment.

 Remember, boys and girls. _______ you work, _______ result you will get.