how many of us knnow the ()of the internet.如果填history,要不要复数形式

how many of us knnow the ()of the internet.如果填history,要不要复数形式 _______will go together with us for the picnicA.How many friends of JOan's.B.How many JOan's friends But how many of us know the history of the internet?翻译成中文 many of us 和 several of us哪个对为什么 how many of the units sold in 1998 were made in US?这句话该如何翻译? How many of us have seen vehicles driving __ erratically down thr roadA.quite B.almost C.hardly D.nearly How many tins of dog food ()? A.can we buy B.can us buy C.we can buy D.us can buy 请翻译一下这句话：（是疑问句）How many of us attending, say, a meeting that is irrelevant to us would be interested in the discussion ? I have__ (many)books of us three, 翻译How many of them are boys? how many kinds of pollution are there? How many bags of milk would you How many of them are languages? how many kinds of poputions are there? How many of them are piaying是什么意思? How many types of masturbation are there? How many member of your family? How many kind of animals in africa?