问几道英语选择题：1.I dont remember when and where I ----this umbre.答

问几道英语选择题：1.I dont remember when and where I ____this umbre.答案是买的几种形式,为什么填过去式,为什么不能填现在完成时.我记得以前类似的题就是现在完成时.请问有什么区别.2.If by any chance Peter comes to us,please ask him to leave a ___.A.letter b.sentence c.messa d.notice求解释这句话都嘛意思.单词全认得.按意思拼下来啥都不是.3.Hi,Bruce.Here si a letter for you.Thanks.I wonder____.A.who that letter was from B.略格式不对.C略格式不对 Dwho from that letter was这俩AD形式好像不一样但我也找不出哪个对哪个错.求赐教4.Once the actor Edwards told his fans,“Be yourself and dont let anybody____you around”A.pull B push C take D turn同样看不懂意思.求翻译.附带个小问题.我记得another用在三者三者以上.但是老师和同学们好像从来都认为两者就行.算默认的.我也没问过..求裁决.