问一下这个AS IF 的句子It looked as if it had fallen on the floor 请问这是事实 还是虚拟 如果两者调换一下应该怎么改

问一下这个AS IF 的句子It looked as if it had fallen on the floor 请问这是事实 还是虚拟 如果两者调换一下应该怎么改 John plays football as well as,if not better than ,David.翻译一下这个句子.还有as well as 在这里的用法. it seems as if they know everything这个句子是不是有问题?在一本词汇书里看到的,seem和as if不是一个意思吗? It seemed as if the world was at an end .用英语说出这个句子的好与坏 关于句子结构和虚拟语气的问题The atomic structure is,___________ ,a miniature solar sysstem.a.as it were b.as if they were c.as if it were .d as if are请问：1请分析一下句子结构．2.这句话是不是虚拟语气? 这个英语句子我不懂A fixed stare acn seem like aggressive behavior if it is a challenge as to who will look away first.这里的“if” 和 “as to”我不理解你觉得那样解释as he said he would not go with us if it reaned哪位大神讲解一下这个句子的语法 请帮我解释下这个句子里 if 和because的用法和意思A sense of fulfillment is also encouraged if a worker feels the job is worth doing because it contributes to the society or theeconmy as awhole.能帮翻一下,并且主要说明下if “If you could choose come back as,what would it be?”,这个句子后面为什么要加个as?请指教 谁能帮我分析下这个英语句子的结构?It looks as if spilled some silver powder.这个是主系表结构还是主谓宾呢? 谁能帮我解析一下这个句子的语法:Were it not for him,i would not be able to speak English as well as i do now. 分析下这个英语句子的语法It is as if a single unimportant event set up a chain of reactions. 求高手翻译一下这个句子 It is known as the “Great Pyramid”. if it all goes as planned,you will recover soon这个句子中as planned,是怎么样用的?as为连词,planned应该相当于是形容易,可以这样用吗 it's not good as i'd like it to 谁能帮我分析一下这个句子哦? It seemed as if... 帮我分析一下这个句子的结构,后面那个半句没谓语啊It'a one thing if a scientific experiment goes wrong in a lab,they say,but something else entirely if it winds up on your dinner plate 请帮我划分一下这个句子的结构成分!he discriable it( as a agreeable situation).()部分是做什么成份?