【正文】
m is ___ the sixth floor. A. at。 樓層用 on。 on D. for。某日期或一段時(shí) 間的開頭或結(jié)尾 )(at sunrise。 to。 to。 towards指朝向 ,無(wú)到達(dá)的意思 。 in B. into。 of。 to。 at Christmas) ★ on 表示在特定的某一天或某天的上午 ,下午 ,晚上等 ★ in 表示一段時(shí)間 .后接月 ,年 ,季等表一段時(shí)間的名詞 . C C A 三 表持續(xù)時(shí)間的 since, for, in, after的區(qū)別 5 His father will be back from London ____ a few days. A. since B. in C. on D. after 6 How long has the bookshop been in business? _____ 1987. A. After B. In C. From D. Since 7 The touch they had both kept in ____ many years broke. A. for B. on C. into D. with ★ since 接過(guò)去的某時(shí)間點(diǎn) , 常用于完成時(shí) . ★ for 接一段具體的時(shí)間 , 常用于完成時(shí) . ★ in + 一段時(shí)間與非延續(xù)性動(dòng)詞連用 ,表一段時(shí)間以后 ,多 用于將來(lái)時(shí) 。 on B. to。 until B. for。 at C.