用“since two weeks ago的现在完成时造句”要汉语

用“since two weeks ago的现在完成时造句”要汉语 对since two weeks ago提问用什么词 I haven't seen her ()A.two weeks ago B.since two weeks C.for two weeks D.before two weeks选什么为什么?句意? I've been here(for only two weeks)用since代替括号中的部分 对了绝对好评 two weeks Is it two weeks since he left London 可以这样改吗He has been to London for two weeks It’s two weeks since Tom arrived inaustralia.改为同义句Tom＿＿＿ Australia for two weeks.请解释一下到底该用has been ,还是has arrived every two weeks 用什么提问? Last two weeks 用什么时态?同上 In two weeks.用什么时态? in two weeks用什么时态 She has been ill ＿＿＿ more than tShe has been ill ＿＿＿ more than two weeks.（用for或since填空 It has been two weeks since I last wrote to you.意思? .He’s borrowed the book since two weeks ago,hasn’t he?________ the great _____ (会议) has been over since two weeks ago I have stayed at my aunt's since two weeks.同义句是什么 It is two weeks since we met last time 是什么从句? 关于since 和for 什么是时间段和时间点 比如two weeks 是时间段?