Hearing the old man’s reports, the officer ______ from his seat and say that something must be done to ______ people’s living standards.
– Who is the man standing there? – If you know, his name is Mike.
One solution to this problem now is sustainable development.
Wind power units are placed ______ there is a lot of wind.
Recently, there a boom in population movements.
______developing countries need to do is to stop poverty.