If the global population goes on increasing at its present rate, by the middle of the 21 st_______century, we all our oil reserves.
A、will have used up
B、are using up
C、will have been using up
D、have used up
【正确答案】：A
If the global population goes on increasing at its present rate,
- 2024-07-28 16:06:23
- 综合英语（二）(00795)