Question

________ Mary ________ Jack is listening to the report carefully, because they are both interested in it very much.

A．Neither; nor

B．Either; or

C．Both; and

D．Not only; but also

Answer 1

D

解析试题分析：句意：不但玛丽而且杰克都在认真听报告，因为他们都对它很感兴趣。not only...but also...连接的两个并列的名词或代词做主语时，后面的谓语动词的单复数形式取决于“就近一致原则”；Neither; nor意为“既不也不”，Either...o...r意为“或者……或者……，要么……要么……”，Both...and...意为“两者都”，连接两个并列的名词或代词做主语时，谓语动词用复数形式；故选D。
考点：考查关联词语的用法。