When food is plentiful, some 25 percent of the population may become ________.
举一反三
- 2) Why will food production have to increase 70 percent by 2050? Because the population will increase to _______ by 2050.
- The state has stopped growing in population and may not（ ） for some time.
- With 25 percent of the earth's population and still growing, India promises overtake China.
- In some parts of the world, the population ________ in the past two decades led to the lack of food and heal care.
- Obtaining enough food is the first concern for every nation; in some countries food shortages have become a serious problem.