i think you meant 'present perfect tense' in its ing form

來源: justjust 2009-05-08 18:02:33 [] [博客] [舊帖] [給我悄悄話] 本文已被閱讀: 次 (179 bytes)
i don't have any grammar book. but it appears to be ok. passive tense may also be fine. for instance 'being forced to quit a job is disheartening' may be grammatically correct;
請您先登陸,再發跟帖!

發現Adblock插件

如要繼續瀏覽
請支持本站 請務必在本站關閉/移除任何Adblock

關閉Adblock後 請點擊

請參考如何關閉Adblock/Adblock plus

安裝Adblock plus用戶請點擊瀏覽器圖標
選擇“Disable on www.wenxuecity.com”

安裝Adblock用戶請點擊圖標
選擇“don't run on pages on this domain”