如果将各环节的损失降至合理范围，每年至少可节约粮食2000万吨。（ ）
A、It would be possible to save at least 20 million tons of grain every year if such losses would be reduced to within the rational limits.
B、It will be possible to save at least 20 million tons of grain every year if such losses are reduced to within the rational limits.
C、To save at least 20 million tons of grain every year will be possible if such losses would be reduced to within the rational limits.
D、If such losses are reduced to within the rational limits， to save at least 20 million tons of grain every year would be possible.
【正确答案】：A
【题目解析】：本题考查的是英语虚拟语气的用法和英语的习惯表达法。虚拟语气表假设，因此主句一般用would，might等来表示。如果出现主语较长的情况，英语中通常会用it做形式主语，而把真实主语放在后面。因此正确答案是A。
