1 . 权衡利弊之后，大卫擦掉眼泪，挣扎着站起来，向起跑线走去，嘴角露出轻松的微笑。
After ________________, David wiped away the tears, struggled to his feet and made his way to the starting line, a relaxed smile appearing at the corners of his mouth.

3 . 我犹豫了一会儿，揣摩如何掩饰内心的尴尬。
________________, wondering how to hide/disguise/mask my inner embarrassment.

7 . 我取得了稳定的进步，这反过来又增强了我的信心。(非限制性定语从句)
_______________________________________________________________________________

8 . 他们把责任归咎于老师而不是自己，结果成绩更差。我也不例外。
They ________________,________________. I was no exception. (分词短语作结果状语)

9 . 声音变得越来越大，直到大卫拖着腿越过终点站。(until)
The voice became louder and louder________________, surpassing the terminal.