Too polite to laugh in anyones face, Roy did his best to ______ his laughter at Eds inane

Their reply was too ______ for anyone to doubt them.A．eloquentB．effectiveC．emotionalD．emph

You would laugh if anyone ____ ask you whether you can tell an animal from a plant.A

According to sociolinguists findings, in normal situations, ______ tends to be more polite

Anyone who has roomed with a noisy person, worked in a noisy office or tried to study with

Some universities offer free , non－credit MOOCs（)to anyone in the world.A. usefulB. a

His political ideas were too _____ to get support from ordinary people.A.competentB.