s__ not known ,seen,felt,or heard before

s__ not known ,seen,felt,or heard before “Never seen you,ever known not so well known As is known to all 与It is known to all 区别?1.( )that the earth is round.A.As is known to all B.As you seeC.It is known to all D.As is seen A B C D的区别?2.Whether way s will be found to stop pullution or not is just ()worries the public.A,why could you please not do s__ stupid things again?填空, have not seen you ages I HAVE NOT SEEN YOU , not easily seen or heard . Women should be seen and not heard. Yesterday Imet Sandy .We _ each other since _ middle school.A.have not seen ;finishedB.have not seen ;finishingC.had not seen ;finishedD.had not seen ;finishing not seen or found very often too early seen unknown and known too late.这句话什么too early seen unknown and known too late.好像是罗密欧与朱丽叶中的台词 It is s__ of you not to forgive your cousin for his mistake.到底是那个 When and why he came here () yet?A is not known B are not known C has not known D have not been _____local customs can often lead to misunderstandings when people go abroad.A.Not having known B.Not to be known C.Not knowing D.Not to have known how long have you () the foreigner?A.met B.seen C.got to know D.known This is a very quiet street.There's__ traffic here.A.much B.not much C.many D.not many 选择 Such films _____ by children like you.A.must be not seen B.must not be see C.must not seen D.must not be seen