These Newly Discovered Dylan Klebold Photos Will Leave You Speechless ‘a Mother’s Reckoning ’ By Sue The New York Times

Delivery has failed to these recipients or groups的意思是邮件发送失败，未能成功投递给这些收件人或邮件组。详细解释： 1. 你可以这样回答： “these are grass.” 或者更自然地，“this is grass.” 因为即使他们用了“these”，我们仍然知道“grass”是不可数名词，所以使用“this is”是更准确的。但在非正式语境中，人.

Opeen Feb 14, 2026

Those / these are determiners and are used before nouns to refer to a particular group of things / people, e.g. These credentials do not match our records？ laravel的登录验证为什么检索不到数据库的信息？出现these credentials do not match our records.好尴尬。. Be动词单数后面就配单数，复数后面就配复数。或者其实因果是反过来的，因为this是单数，所以is；因为these是复数，所以是are。一言蔽之，不可以说what’s these, 一定要 what are.