Fill in the Blanks (Reading & Writing)

Archaeological digs require painstaking care, as each layer of soil may —concealconcealmentconcealedconcealing objects from a different historical period. Every artefact is carefully catalogued and its exact position —recordedrecordingrecordsrecord before being removed, since context can reveal as much as the object itself. Findings are later cross-checked against written records to —confirmconfirmingconfirmationconfirmed their age and origin.