don't have是一般现在时的否定形式,原式是do not have。是用于第一人称单数形式以及第三人称复数形式,第三人称单数要变为does't have 而haven't是现在完成时态,指过去的过去。原式是have not。(用法同上) 解析看不懂?免费查看同类题视频解析查看解答 更多答案(2) 特别推荐 热点考点 2022年中考真题试卷汇总...
否定词比如:didn't,don't,doesn't,hasn't,haven't...后面跟的动词要需要改吗?还是过去式的才要改??? 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 has和have及它们的否定形式后边动词要用过去分词形式。 解析看不懂?免费查看同类题视频解析查看解答 更多答案(2) 特别推荐 热点...
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Dear all, My script only to get product_id, if haven't any return record, it will be return 0 (zero). I tried with COALESCE and IFNULL, but they not resolved yet: SELECT COALESCE(product_id,0) FROM product WHERE product_name='abc'...
has got, C. haven't got, D. hasn't got 1,Lili ( )a car .she goes to school by bicycle. 2,they like toys. they ( )there toy dogs and two toy cars .3,he likes Reading he ( )many books. 4,wha's the matter? i ( )something in my eye .5,where is my pen? i don't ...
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A. mustn't B. haven't C. didn't D. hadn't 试题答案 在线课程 2. C考查特殊句型的用法。在"…must have done…"这个表示对过去的推测的句型中,反意疑问句不可用must的任何形式,因为must用于表推测时仅能用于肯定句。若语境中有明确地表示过去的时间状语,反意疑问句必须用过去时的否定式,若没有明确地...
A.don't noticeB.haven't noticedC.didn't noticeD.wasn't noticed 试题答案 在线课程 分析-Tony,小心!不要离水池这么近. -谢谢.我没有注意. 解答答案:C 根据语境可知对方让Tony小心,根据Tony的回答可知他之前没有注意到,故确定为一般过去时,又知该句的谓语动词notice为实意动词,其否定结构为didn't+动词原...
Why do I have to restart my server after I haven't used it for a while?The very high demand that our free streaming service attracts means that the servers have to work very hard to keep lots of streams online. In order to save resources, inactive servers are clos...
Return 0 (zero) if haven't return record? 2749 Nguyen Sinh Tran August 09, 2009 09:47PM Re: Return 0 (zero) if haven't return record? 1660 Brijesh Kumar Shukla August 11, 2009 07:12PM Re: Return 0 (zero) if haven't return record? 1781 Nguyen Sinh Tran August 12, 2009...