6．．We will see you again next Saturday．______, you must rest as much as possible and take good care of yourself．
A．However B．Meanwhile C．Otherwise D．Therefore
7．Although they just met for the first time, they talked _____ they had been friends for many years．
A．as long as B．even if C．such as D．as if
8．1 wish I'd bought a few jars of honey．Did you notice the ones they____by the roadside?
A． were selling B． are selling C． have sold D．had sold