Although she was not very rich, she was quite _____ with her money.
A. noble
B. flexible
C. liberal
D. liable
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These are not _____ reasons to justify his silly mistakes.
A. enough
B. capable
C. sufficient
D. realistic
It is a principle that we _____ all the government's policies.
A. undertake
B. undergo
C. underrate
D. underlie
在C语言中，为了结束由do-while语句构成的循环，while后一对圆括号中表达式的值应为（）。
A. 0
B. 1
C. true
D. 非0
Listen to five short conversations and choose the best answer to each question you hear.[音频]
A. She should talk about the promotion with her boss.
B. She should keep shut until a better job is available.
C. She should quit her job to get a better one.
D. She should urge her boss to keep the promise.
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