The revolutionary system of farming, said the Israeli government spokesman, was one he believed could change the face of modern agriculture.
A. that
B. how
C. /
D. what
网友回答
(答案→)A. that
B. how
C. /
D. what
解析：考查定语从句。句中the one指代the Israeli government spokesman，故the one为先行词，在定语从句中作主语，he believed作插入语，故用关系词that。选A。