Do you know what Mary wants?
Do you know who she is?
Do you know where he lives?
Do you know when Alice will leave?
Do you know why Jack can't come?
Do you know how I should do it?
可到我的網站看看,我會不定期的分享一些文法觀念,實用英文句子及單字的用法:
https://www.facebook.com/kuan1000/