--This yard is so clean today and everything looks fine. --I

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--This yard is so clean today and everything looks fine. --I didn't notice that. It's clear someon
--This yard is so cleantoday and everything looks fine.
--Ididn'tnotice that. It's clear someone it.
A. cleans B.cleaned C.has cleaned
高手赐教谢谢

选C
题意：--院子今天非常干净,一切看起来都很好.
--我没注意,很明显有人清洁过.
根据题意,是有人已经清理过了,所以现在非常干净,现在完成时强调对现在的影响.
再问：您好，是不是clear与someone之间应加一个逗号？谢谢！！！
再答：不用加逗号，it's clear (that)...... 这句话是主语从句，it是形式主语，真正的主语是that后面的部分，that可以省略

--This yard is so clean today and everything looks fine. --I 英语翻译What a fine day!The sun is shining and everything looks What a fine day!The sun is s_________ and everything looks b everyone and everything is fine对吗? 英语翻译I am fine,and everything is ok,don't worry ,i'm going to I hope everyone and everything is fine!拜托各位了 3Q I is Sunday today.The weather is fine.Mingming and Dongdong 英语翻译1.How are you today?I`m fine thank you.2.this is mu son 英语翻译Today's everything...I will never forget.Maybe,this is t 英语阅读短文TOday is saturday.It's fine.my parents and i go to th --Tom ,you clean the yard this time,__?--But I did it last t -TOM,you clean the yard this time,——?-But i did it last time