We cannot leave this tough job to a person ________.
B
译文：我们不能把这样一份艰巨的工作交给一个没有自信的人。本题考查定语从句，haveconfidenceinsb是固定用法，关系代词whom用作介词in的宾语。
What he told us was more of a(n) ________ than a reality.
Modern economics ________ the country ’s agricultural policies.
______ofmeaningisaprocessbywhichawordthatoriginallyhadaspecializedmeaninghasnowbecomegeneralized.
Idioms nominal in nature have a(n) ______ as the key word in each and function as a noun in sentences.
Onecanfigureoutthemeaningof“airmail”tobe“mailbyair”byits______.