1.We suggest --------(替换)the present chairman with a younger and more energetic person.2.It's a pity that numbers of people lack of protecting the r---------- of the Great Wall.

问题描述:

1.We suggest --------(替换)the present chairman with a younger and more energetic person.
2.It's a pity that numbers of people lack of protecting the r---------- of the Great Wall.

1. replacing
2. remains