As we all know,parents are concerned____their children's study,because it is concerned ____their future.A.for;about B.about;for C.about;with D.with;about

as we all know . as we all know是什么意思 as we all know的近义词? as we all know同义替换 As we all know,earthquakes are (destroy). As we all know,we are what we eat? as we all know能放在句首么就是AS we all know ,XXXXXXXXXXXXXXXX As all we know 还是As we all know 正确啊,求高手解答.. as we all know中的as是什么词性? As we all know,light (travel)faster than sound As we all know,light_(travel)faster than sound. as we all know=什么好像是什么knowleage As we all know,pandas are ________ in China. As we all know we should study hard._______ _______ _______ that we should study hard. 英语翻译as we know as we know as we know as we all know it如果要it 把as改为什么