The two strangers talked as if they ______ friends for years.A.should beB.would beC.have b

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The two strangers talked as if they ______ friends for years.

A.should be

B.would be

C.have been

D.}lad been

热搜:在Sb2S3,HgS,Bi2S3,As2S3,SnS等物质中,不能溶于Na2S溶