a question about uncountable noun If I wanna express a meaning of "the material of A, the material B, and the material C have the property of XXX", and I shorten the sentence as "the material of A, B and C has/have the propoerty of XXX". Herein, should I use "has" or "have", meanwhile, is it possible that the shortened senctence could be misunderstood as "the material of A, the material of B, and the material of C are the same" (and what I really want to express is that the material of A, and the material of B and the material of C may be/may not be the same)? if it could be , how should I write the sentance? Thank U so much for Ur help.