试题题干
If it（ ）another ten minutes, the game would have been called off.
参考答案
正确答案：
试题解析
本题考查虚拟语气。
句意：如果再下十分钟雨，比赛就取消了。
由题干可知是由if引导的虚拟语气，主句是would have been called off，所以是对过去的虚拟，从句要用If+主语+had done。故A选项符合题意。
If it（ ）another ten minutes, the game would have been called off.
本题考查虚拟语气。
句意：如果再下十分钟雨，比赛就取消了。
由题干可知是由if引导的虚拟语气，主句是would have been called off，所以是对过去的虚拟，从句要用If+主语+had done。故A选项符合题意。