121. I was uncertain of my success. Which of the following can replace the underlined word

发布时间：2020-08-16 06:39:38


121. I was uncertain of my success. Which of the following can replace the underlined word?
A. willing
B. not sure
C. certainly
D. not certainly

网友回答

A. willing
(答案→)B. not sure
C. certainly
D. not certainly
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