an operating system wasn't found……修复办法-百度经验
2019年12月7日 · 有时我们在开机的时候，可能会发现电脑无法正常启动了，而是出现一个黑屏界面，并提示an operating system wasn't found。下面我们就看一下遇到此类问题如何解决。
Wasn't vs. Weren't - English Language & Usage Stack …
2020年1月19日 · The person saying it should be wasn't cited this for support: "The use of were and weren't in the subordinate clauses depends on the reality or truthfulness of the …
I haven't been vs I wasn't - English Language & Usage Stack …
2018年11月14日 · If you were currently visiting Chicago for the first time, but you had been in Illinois (or the USA) on some previous occasion, but didn't go to Chicago, you might say "I …
"Wasn't" vs "weren't" - English Language & Usage Stack …
2025年5月15日 · The fact that you wish something was or wasn't true means you should use the indicative. You are stating that something is factually one way or another, and wishing for the …
What's the difference between "wasn't" and "hadn't"?
2015年12月2日 · A's use of "wasn't" probably falls under the Simple Past designation. "The baby wasn't sleeping all night" — you might come across this sentence in a book when the narrator …
Difference between "couldn't" and "wasn't able to"
2015年11月18日 · Since negative form 'couldn't' can cover all situations (specific or general) you might hear it more. Couldn't can be used instead of wasn't able to. When you hear people …
grammaticality - if it wasn't for or if it weren't for? - English ...
2025年5月14日 · "Napoléon was certain to win at Waterloo, if it wasn't not for unexpected heavy rains and his canons stuck in the mud". "If it were not for", subjunctive, express a doubt. …
What is the correct usage of contractions like "isn't" and …
2025年5月15日 · Why wasn't she there? Which would be equivalent to: Why was not she there? Which doesn't make any sense. Considering how often I see this used I thought I could find …
What is a word used to describe something that 'wasn't …
2016年6月3日 · It (just) wasn't meant to be derives from the idiom meant to be, which means "destined to exist" . People say that something (for example, an event) was "meant to be" …
grammar - "I wasn't expecting" vs."I didn't expect" - English …
2020年7月13日 · Suppose someone drops by and you say "Hey, I didn't expect to see you today" or "Hey, I wasn't expecting to see you today". What is the difference between those two …