In________ review of 44 studies, American researchers found that men and women who ate six key foods daily cut the risk of________ heart disease by 76%.
In________ review of 44 studies, American researchers found that men and women who ate six key foods daily cut the risk of________ heart disease by 76%.
A. a; the
B. the; a
C. a ; 不填
D. 不填; a
答案: C
解析: review是可数名词, 表示泛指要用不定冠词a，heart disease是心脏病，疾病的统称，是不可数名词，在这里不需要用冠词，答案是C。
语法分析：
主句：
In a review of 44 studies, [状语] American researchers [主语] found [谓语] sth. [宾语]
宾语从句：
Men and women [主语] cut [谓语] the risk of heart disease [宾语] by 76%. [状语]
定语从句：
Men and women [主语] ate [谓语] six key foods [宾语] daily. [状语]