为什么这句话中用be,而不是is"I think it is very sad that an unexpected performance be surrounded by suspicions."这个是关于叶诗文夺冠的一个新闻发布会中,奥运官员说的.请问,为什么an unexpected performance 后面跟

My goal is to be rich中为什么用to be而不是being?为什么I think being happy is more important中用being? 为什么这句话中用be,而不是isI think it is very sad that an unexpected performance be surrounded by suspicions.这个是关于叶诗文夺冠的一个新闻发布会中,奥运官员说的.请问,为什么an unexpected performance 后面跟 What should I be doing differently?这句话为什么 I 后面跟的是be 而不是am I am doing I’m your teacher,aren’t 为什么这里用的是aren`t而不是isn`t?如果换成I`m his teacher,) not )这里用are还是is.I have to talk though there is no money……这句话里的there is有什么作用,没用可以吗?为什么翻译是这 I want to be an actor中为什么要用be而不是is? Tony,make sure everything____for the meeting before 7:30.don't worry about it,sir.i'vealready made为什么要填 is prepared?而不是WILL be PREPAREd 这句话中“being”为什么意思?I can't understand why he is being so selfish.是be的另一种事态吗? Don't be late next time,Mike为什么答语是Sorry,I won't而不是Don't worry 关于一个简单的英语语法children are addicted to the computer ,这句话中,为什么用be动词are而不是 is?第三人称不都用is吗 为什么I had him arrange car这句话中用arrange而不用arranged? what i disagree is that everyone should be equal这句话对吗?请说明为什么. I don't know what the reason can be.和 I don't knoI don't know what the reason can be.和I don't know what is in the stockings.这两句话中为什么一个宾语是完整的疑问句一个却是倒装?可能的话最好说明一下What在两句中 I didn’t have enough money for a taxi,so I walked back to the school .为什么用for?为什么要加to?我问不太清楚,这句话中用到了什么句型吗? If there is a choice, I would rather be a madman, what all can't remember这句话是什么意思? i dont believe him,he can,t be serious这句话怎么理解,为什么用can't,shouldn't must't不行吗 Don't be nervous中BE的用法这里为什么要加BE 是不是应为nervous是形容词 所以前面必须加助动词BE呢?还有为什么这里是加BE而不是IS 第二个问题是 Whenever I talk to foreigners ,I am nervous.这里加AN是不是 I used to be one who could't under stand the English men请问这句话中,used to be one 为什么要加个be _,I don't think we have the chance to win.为什么选to be honest而不是being honest