单选题 16.If the United States had not entered the Second World War, probably the unemployment rate ______still further.

A、 would rise
B、 should rise
C、 would have risen
D、 had risen

【正确答案】 C

【答案解析】根据句子结构，我们可以看出该句使用了虚拟语气。因为在条件从句中谓语动词用的是过去完成时，所以主句就相应采用would have done sth．结构，例如：If you hadcome here yesterday，you would have met Professor Chomsky．你昨天来这里的话，就会见到乔姆斯基教授了。因此只有C是正确答案。