A.sample B.stamp C.seal D.smile,
A. freeze B. cold C. heat D. wash
A.claim B.calm C.clean D.clear
A.consignor;consignee;exporter B.consignee;consignor;exporter C.consignee;consignor;importer D.consignor;consignee;importer
A.testing B.inspecting C.resolving D.making