Our head teacher’s playing the violin _______ our classroom on the New Year’s Party.

Bad habits are no way easy to be ______; it needs your determination and perseverance.

Lan Lan _______her pace of walking home fearing that it was going to rain.

—Was he still there when you were away to answer the phone?—There is no doubt about it, but he ________ soon afterwards.

The silence of the library _____ only by the sound of pages being turned over.