是修饰主语
the theory
的定语从句,句子的基本结构为
The theory proves to be of no use in our studies.
■The work he devoted his time to _____ worth praising.
A">A. was B. be
C. being D. been
【分析】答案选
A
,
he devoted his time to
是修饰主语
the work
的定语从句。句子的基本结构为
The work was worth praising.
■I think this is the very work that we must finish ____ her.
A. to help B. help
C. helping D. helped
【含有定语从句的一系列难题】相关文章:
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