A．A regular study program is essential to learning another language.
B．Eating eggs and toast is important for learning another language.
C．Learning another language is as easy as eating eggs and toast.
D．A language-learning program should be set upon eggs and toast.
参考答案A
解析:A
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A．She failed to understand the contents of the new book by Dr. Charles Adams.
B．She failed to speak Spanish proficiently after four years of study in high school.
C．She failed to finish an academic term paper about Spanish learning in high school.
D．She failed to pass the proficiency test of Spanish though she worked hard in high school.