题目内容

________ we ________ much longer, we might not even have had the spot on the rooftop.
A．Should; hesitateB．Was; hesitatingC．Did; hesitateD．Had; hesitated
D
考查虚拟语气。当表示与过去的事实相反时，主句用would/might/should+have done；而从句用had done。根据might not even have had可知，是对过去的虚拟，从句用过去完成时。本句省略了if，把had提到了句首，完整形式应该是if we had hesitated...。故选D。
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