Look at the trouble we’re in. If only we our teacher’s advice. A. had taken B would have

问题补充：

Look at the trouble we’re in. If only we our teacher’s advice.

A. had taken B would have taken C. took D. have taken

答案：

解析：考察虚拟语气。If only后面的从句使用虚拟语气，用过去时表示与现在或将来相反；用过去完成时表示与过去的事实相反。根据句意可知本题是与过去相反，故使用过去完成时。句意：看看我们现在所处的困境。要是我们采纳老师的建议就好了。