口语交际
A:Hi, Mike, _______
B: Yes ,Ido. It’s more than 6 billion.
A: Wow, that’s large! _______
B: Yes.It will reach about 9 billion by 2050.
A: ___________
B: It’s going to be bad. _____. We won’t have enough food,water,or energy in the future.
A; _________
B: Yes, it is.Governments all over the world are working to solve the problem.
A: I hope the population of the world won’t grow so fast.
B: Me ,too.