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  

解析試題分析：句意：不僅瑪麗而且杰克認真聽取了報告，因為他們都對它非常感興趣。Neither; nor既不，也不，連接并列主語時，遵循就近原則；Either; or 或者，或者，連接并列主語時，遵循就近原則；Both; and兩者都，連接并列主語時，謂語動詞使用復數形式；Not only; but also不但，而且，連接并列主語時，遵循就近原則。根據because they are both interested in it very much可推知瑪麗和杰克都認真聽了，再結合后面的is就可知該選D。
考點：考查連詞。