Hemetmanyproblems________hewasgoi

发布时间:2020-07-12 03:23:37

He met many problems ________ he was going over his lessons.












A.before











B.as soon as










C.since










D.while

网友回答

D解析本题考查连词的用法。while“当……时”,往往指动作那时正在发生,由句意“当他在复习功课时,他遇到了许多问题”可知选D。
以上问题属网友观点,不代表本站立场,仅供参考!