最后，the bottom line is - verb tense is a meaning-based issue.
最后的最后，引用Ron大神的话—— ** WARNING ** for non-native speakers of english (as well as every other language in the world -- this is not a unique feature of english), verb tenses are MUCH harder than any other aspect of the language. in fact, it's almost impossible for any non-native speaker of any language to master verb tenses fully and completely. even when an intelligent speaker has been using his or her second language exclusively for decades, he or she will still routinely make verb-tense errors.
therefore: DO NOT study verb tense until you have 100% MASTERED the other MAJOR sc topics. * parallelism * pronoun use * subject-verb agreement * modifier placement if you cannot identify these error types literally one hundred percent of the time, then do not study other error types -- especially verb tense (which should be the absolute bottom priority for non-native speakers) -- until you can.作者: 半阙 时间: 2012-3-19 12:52
这个必须顶~~先摘了，晚上睡觉前抱着本本到床上看去......谢谢baby姐哈~~作者: bob9603 时间: 2012-3-19 13:37
刚看到baby姐的这个帖子，说的很对啊，那4个问题不解决，时态再好也没用~作者: amaibaobao 时间: 2012-4-30 11:03
多谢baby姐姐啊！！作者: teddybearj4 时间: 2012-4-30 14:48
姐姐的帖子顶之再看~~~作者: ella13 时间: 2012-6-17 10:14
灰熊之感鞋~~作者: scychasedream 时间: 2012-6-27 21:45
狂顶。。。。。。。。。。。。。。。。作者: 涵叶 时间: 2012-8-13 10:54
太好了T^T....CR的大难关....作者: alicezyk 时间: 2012-8-31 23:46
顶了 谢啦作者: miss绿光 时间: 2012-10-7 10:45
为了还在奋战的筒子们，顶作者: pennyz 时间: 2013-1-8 12:03
顶贴来看！时态问题一天不解决心中不安啊作者: 夏日之浅浅 时间: 2013-9-22 14:53
各位小伙伴有看baby给的第一个题吗？1981、1997那个。。。弱弱问一句为什么1981用过去式，1997却用了过去完成时呢？？作者: wfywfywfy 时间: 2014-6-20 16:04
郑重MARK！！！！！！作者: 这个id有吗 时间: 2014-7-8 19:29
谢谢姐姐分享作者: 我要喝可乐 时间: 2015-12-1 10:16
感谢分享！ 作者: ysycoco 时间: 2017-11-25 15:23
感谢分享！
