【问】 Were I to meet him tomorrow，I should ask him about it.

对于上面的无连词非真实条件从句我已经比较熟悉。但是我在词典和语法书中只查到它用于句首的例句，而没有查到用于句末的例句。这种无连词条件从句能否用于句末呢?

【答】 由were，should和had构成的无连词(无if)非真实条件从句既能位于句首，也能位于句末。

1. I should ask him about it were I to meet him.

要是我能遇见他的话，我是会问他这件事的。

2. There’d be a clear case for legal action over this matter were it likely to make life diffi-cult for all of us. (LEG)

如果这件事有可能造成我们大家生活上的困难的话，我们对此事是完全有理由提出诉讼的。

3. The cave might never have been discovered had not the entrance been spotted by the dis-tinguished French potholer，Berger.(NCE 3，L.42)

如果不是法国著名洞穴探险家波格发现了这个洞口，这个洞穴也许永远不会被发现。

请做下面的英语试题：

The impact of Thoreau's “On the Duty of Civil Disobedience” might not have been so far-reaching_______ for Elizabeth Peabody，who dared to publish the controversial essay.

A. it not having been B. it is not being

C. had it not been D. is it not being(TOEFL，85. 11)