These are stamps from America. These stamps are from America

These are stamps from America. These stamps are from America these pianos are from america These stamps are from Mexico.They are ( )stamps These stamps are from China.They are ( )stamps. These are some stamps from England就some stamps from England提 And all of these stamps are from China,too These are some stamps from Canada.怎么改成疑问句 these are stamps from china这个句子对不对? these stamps are from canada,改为同义句 These stamps are from England就England提问. These are China stamps. 连词成句 1 are from stamps there America some 2 collect do you s