【C7】A．sitesB．codesC．beliefsD．workers

听力原文：（A) The boxes are on a conveyor belt.（B) Workers are taping the boxes.（C) Workers

A．Farm workers.B．White－collar workers.C．Blue－collar workers.D．Not mentioned.

Norman Blamey is an artist of deep convictions.A.claimsB.suggestionsC.beliefsD.statements

【C8】A．numbersB．codesC．secretsD．digits

The incomes of skilled workers went up., unskilled workers saw their earnings fall.A. M

Jack is a diligent worker.