【C10】A．isB．areC．hadD．／

Either of the examples _____ good enough.A、isB、areC、wereD、be

The old ______ well looked after by the government.A．isB．areC．beingD．has

Jan ______ over there.A、isB、areC、amD、was

Mathematics ______ the study or science of numbers.A．isB．areC．wasD．were

The news you told me_______ surprising.A. isB. areC. willD. should

The rich ______ not always happy .A、isB、areC、hasD、have