对二溴苯

关于can't have been的句子我写的I can't have eaten为什么是错的老师说非要写成I can't have been eatting 高中英语could have done 只表示过去可以做而未做,可是could have been却可以表示对过去的推测、.还有类似的情况吗?比如should have been,should have done 都表示过去应该做而未做 请问一个关于could have been 的句子是不是虚拟语气?But it could have been neither the execution of the work,nor the immortal beauty of the countenance,which had so suddenly and so vehemently moved me.书上说could have been 通常用 分析下面英语句子成份和词的作用leT me have a trylet me have a trywe stopped there for a swimcan i have a read of your papershe had a cry about the sad newwe went for a strollyou could make a guess at it 想进外企的话对口语要求应该很高吧,商务口语和职场口语有差别吗? me have let try a该怎么排句 请帮忙用have a try 造一个句,他将愿意试试这次机会关键是后面的介词用什么？是at this chance吗？ I have a try 是不是一个正确的句子 one and a half apples 后面的谓语用单数还是复数? 吸血鬼日记第三季何时出 吸血鬼日记第三季什么时候出 吸血鬼日记第二季一共几集,有没有第三季? 吸血鬼日记会有第三季吗如果有,什么时候呢 期待. 吸血鬼日记第三季多久出来 Wuxi is about half an hour _____(离开) from Suzhou by car. 一道英语合并句子,The house is green.It has a layer of glass around it.The house______ ____ a layer of glass around it is green.填什么单词好呢? After trying hard ,I got a job in a gold mine. throw pillow 是抱枕的意思吗? life pillow什么意思,直译是枕头生活的意思,希望高手一下 pillow什么意思 He is always ready to help others是什么意思 In fact___is a hard job for the police to keep order in such an important football matchA.it B.there C.that D.this 为什么选A we feel (tired).改为特殊疑问句 I feel warm改成特殊疑问句快回答! I feel sick.改为一般疑问句 时间简史开头中有句"But it's turtles all the way down. you don't drink water all day.How do you feel?you run for half an hour.Are.you feeling tired?这个句子的意思和答语 -Are you feeling tired after the game?-____.In fact,I feel quite relaxedA.Not a little B.Not a bit C.Not little D.Not bit The first class_______ at half past eight in or school ...I love the way they dribble up and down the court 请等待 . remember the rules Do you ( ) tired?（A.feel B.feels C.feeling D.felt 要在9:00钟以前哦!