问题
选择题
After the exam, my teacher told me that failure ____ the mother of success.
A．was
B．is
C．be
D．been
答案
答案：B
考查时态。根据句意可知描述的是客观真理，时态用一般现在时，故选B。
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After the exam, my teacher told me that failure ____ the mother of success.
A．was
B．is
C．be
D．been
答案：B
考查时态。根据句意可知描述的是客观真理，时态用一般现在时，故选B。