I have been removing obstructions from the pipe since 9:00am today.
問下大家以上句子用現在完成進行式有無問題。
收錄日期: 2021-04-11 20:30:47
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140202000051KK00072