请教老师以下句子：For us this has been the most perfect way to remember her, and this is how she would want to be remembered.这里的完成时如何理解？如果是表状态延续到现在为何没有时间状语？这个完成时也不是表示事件或习惯吧？
Gross MarginGross margin is the percentage difference between what a product sells for in the market and what it costs to produce that product.what it costs为什么不写成how much it costs?
...nbsp;media outlet TheGrio in an interview released Sunday, when asked how Trump promoting birther conspiracies signals the tactics his campaign will use.请问，这句话该怎么分析，signals是什么词性
IN 1991 ALVIN ROTH, who in 2012 would share the Nobel prize for
economics, was asked how the discipline might change over the century to come. 老师您好，请问这里的would share是什么意思？虚拟语气还是啥？整句话是1991年，此人被问起，然后说2012年。
Yet some experts don’t expect a children’s vaccine will be ready by the 2021 school year because of how long trials take, even on the accelerated timeline for Covid-19 vaccines. 黑体字是间接感叹句，还是，名词性关系分句？
Precious little evidence exists to show that opportunities online are
encouraging infidelity.How are those two little precious ones?请问老师表示限定的词不是放在表示描述的形容词前面吗？请问precious little 和little precious有什么区别？
... US kids get active during times of covid》I work from home full time, so does my husband, so getting the kids outside during the pandemic with their friends and biking and socialdistaning has been great.这里用 has been great 现在完成是暗示对现在的影响吗？如果改成一般现在...
求教下列句子的on 是做定语，还是状语；谢谢！I was getting in touch with her to set up an interview on how she "had it all" -- that phrase.我跟她联系想要预约一次访问了解（关于）她是如何“日理万机” 原话如此
...老全国卷I-阅读理解七选五 According to Jessica Hagy, author of How to Be Interesting, it’s not
difficult to make yourself interesting at a dinner party. 【翻译】根据《如何变得有趣》一书的作者杰西卡·哈吉的说法，在宴会上让自己变得有趣并不难。The...
...on,” Brunner said, “to paraphrase Miss Bobofit’s excellent question, does this matter in real life?”黑体部分的官方翻译为：我身后，南希·鲍伯菲特正和一个朋友嘟囔着：“就好像这东西我们能在现实生活中用到似的。就好像以后的工作招聘时...
...了更强烈的悔恨情感。Learning to apologize in another language does not excuse speakers from practicing the same good manners in their mother tongue.在学习用其他语言的道歉的同时，学习者也应该学会用本国语言诚挚地道歉。So many people lament the coldness o...