53._________A. loudB. peacefulC. classicD. easy

It is easy for a horse to _____ at the sound of guns.

It is not always so easy totell the white _________ the black.A、betweenB、instead ofC、fr

Sister Carrie is a masterpiece of______work.A．romanticB．classicC．neo-classicD．naturalistic

This maths problem is easy ______________.A.work outB.to be working outC.workedD.to wor

Her voice is _____.A.loudB.aloudC.loudlyD.loudness

Doctor Reef lives a ___________ lifeA.happyB.miserableC.easy－goingD.reckless