at around 6:00中，around是介词还是副词呢？如题
Great Britain gave the most performance in this group, winning only nine gold and nine silver medal. 句中“medal” 应加s 表复数吗？ 另外，居中 winning 为何要用动名词形态呢？如题
请问second与secondary 有何区别，谢谢！如题
要表示“在某人的指导下”，英语通常用什么介词，我见过用under的，如：We did the work under his direction. 我们在他的指导下工作。We did the experiment under our teacher’s guidanc...
You should try ( )the way i suggested,Im sure youd find it much easier.A.to doB.doingC.and doD.and doing如题
we have not fixed the date ( )we shall start our holidays.A.andB.thatC.whenD.which如题
brand 和 trademark 都是“商标”的意思，它们有哪些区别？与知名度有关吗？或是与正式与非正式有关？如题
下面这题是2013年的江西高考题：I ______ to visit you later that day, but I had to phone and cancel. A. comeB. cameC. am comingD. was coming所给答案是D。为什么只能用过去进行时呢？用一般过去时就...
怎么样会比较好理解介词短语做宾语补足语？比如 I invite her to the party. A gust of wind swept the bed off the roof.我老是理解成状语，我要请她，去哪里？to引导地点状语，把床从哪里刮下来？从屋顶...
在一篇文章上看到，非限制性定语从句有时形式上是从句，实质上其功用相当于一个并列的分句。如：It’s quite a bad break, which will take several months to heal.=It’s quite a bad break, and it will t...
His clothes，though old and worn, looked clean and of good quality. 他的衣服虽然很旧，但看上干干净净，质地很好。 这一句中，主句的谓语动词looked，为什么加ed？是过去分词吗？如果说表被...
and前后连接的名词，分别为：1.均不可数；2. 一个可数，一个不可数时，主系表结构的句子，系动词是用单数还是复数？在The Picture of Dorian Gray序言中看到这样一句话：Vice and virtue are to...
对于口语中表示问候的how are you的回答，我知道有以下两个： Fine, thank you. And you? 很好，谢谢。你好吗?Very well, thanks. And you? 很好，谢谢。你好吗?请问还有哪些可能的常用回答吗？如...
mankind 的意思是“人类”，词典上说它不可数，不用复数形式，也不连用冠词。但它用作主语时，谓语动词该用单数还是复数呢？我看到过这样一个句子：Mankind are intelligent animals. 人是理智的动...
ashamed与shameful有何区别。比如下面一句，该填ashamed还是shameful?Cynthia is not __________ of what she does, even if she ends up doing something wrong.如题
大家知道，以-ly结尾的词一般是副词，但有些以-ly结尾的词却是形容词而不是副词，如lovely, friendly等。请问这类词比较常见的有哪些？如题