题目内容

根据汉语提示完成句子
1. I  was                    (对……不确定)my future.
2. The old man seems______ __       (不清楚)his own birthday.
3. I___ __   __           (不清楚)what to do  next.
4. While you speak to somebody,  please don't___             _(吞吞吐吐地说).
1. uncertain of/about   2. uncertain of/about   3. am uncertain ahout   4. speak uncertainly
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