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hAvE yEt to BE

has yet to = has not. 这里的"yet”是“还没有”的意思。你这句话是雅思题里的吧,我也做过!嘿嘿!

yet 是"仍然没"的意思,是否定的含义 has yet to do sth.=has not yet done sth. 再看这句 the riches of the sea yet to be developed by man are impressive. (选自新编英语教程第一册) 仍未被开发的海洋宝藏是巨大的 。 (=the riches of the...

两者都用于现在完成时,前者用于疑问句,后者用于疑问句和否定句。 have you finished your work yet? haven't you finished your work yet? he hasn't arrived jet.

already 已经,可以用于多种时态. still 还,仍然,通常多用于肯定句中. yet 还,仍然,多用于否定句和完成时态的句子里.

i have yet to do the shopping for your mom 我还没有去给你妈妈购物。

1 have yet to determine -- - == haven't yet determined - - -- 又如: Tom has yet to come == Tom still hasn't come. == Tom hasn...

在现在完成时的句子中,already常用于肯定句,yet常用于否定句和疑问句,但yet还有其他用法。 1. 用于否定句中,意思是还、尚、迄今、到那时”。例如 he is not yet here. 他还未到。 at three o”clock they had not yet decided whether to play...

连词指词、词组或句子之间起连结作用的词汇,包括并列连词(如 and,but,or,yet,either ... or等)和从属连词(如 when,as,because,since等),yet 并不是连接 助动词 do not 和 动词have 的词,而是说明 do not have 这种状态还保持着原...

我觉得是科学家不得不决定日期,但还没有决定!因为have to 是不得不的意思。一般have表完成时是加动词过去分词,后面不加to

这两个字都表示 "已经", 而且都用在 句尾; 不过不同的是 yet 用在问句里, 而 already 用在肯定句里。Have Bob and Jenny moved into the dormitory yet? Yes, they have moved into the dormitory already. Have Bob and Jenny talked to their ...

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