begin是短暂性动词,不能与表示一段的时间状语连用,必须用其延续性形式be on,C选项中的last要用过去分词lasted,故答案为D。 点睛:短暂性动词又称瞬间动词,表示动作一旦发生就立即结束。这类动词有:go, come, arrive, leave, begin, start, join, marry, buy, die 等。瞬间动词可以用于现在完成时,但不能和...
"for 15 minutes"表明动作持续,需用延续性动词。begin(开始)为非延续性动词,其对应的延续状态为be on(进行中)。选项分析如下:- **A. was on**:过去时,无法与现在完成的时间段(for 15 minutes)对应。- **B. began**:过去时,且begin为非延续动词,不能接时间段。- **C. has been on**:现在完成时,...
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C 试题分析：句意：会议什么时间开始的？四点钟，已经开始了15分钟了。后面的时间状语为for加一段时间，所以常用于现在完成时中，且谓语动词要用延续性动词；故选C。
Use Windows Explorer to go to the folder c:\calcheck and open the CalCheckErr.csv. It should list the duplicated items. Example: Close Outlook and Excel. If you are satisfied with the list, you can now remove those duplicates. The duplicates will be moved to ...
解答 答案:had been on for ten minutes when we arrived 根据汉语意思,再对照所给的部分英语句子,可知缺少"当我们到达时,已经开始10分钟了."根据语境知此处需用过去完成时且与"一段时间"十分钟搭配,故开始不可用非延续性动词begin而需用其相应的延续性动词短语be on,根据过去完成时结构"had+过去分词"故应为ha...
Ⅱ86.【答案】been on【核心短语/词汇】be on: 已经开始【解析】考查动词与时态。因为for ten minutes是一段时间,所以与延续性动词连用,根据have和句意可知本句使用现在完成时。句意:当我到那儿的时候,会议已经开始了10分钟了。begin开始,短暂性动词,和时间段连用需转换成表示状态的be on表达开始的意思,be on...
If I stop a Microsoft SQL query before completion could any rows be affected? IF NOT EXIST and IF EXISTS question IF NOT EXISTS and CREATE SCHEMA if nvarchar(50) actual size is 100 then what should i state in .NET SQL Paramerer variable? IF STATEMENT WITH A CASE STATEMENT WITHIN A SQL...
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Erica:Linda? Oh, my Gosh!7She’ll be mad at me. It just slipped my mind. Manuel:Well, it’s not too late yet. I’ll make a phone call. Don't worry. A. Do you have anything in mind? B. Now what should we do? C. I think you’re right there!