No sooner ________ stepped on the stage than the audience broke into thunderous applause.

It is a pity that they have _______ the sports meeting because of the heavy snow.

mith finds it hard to clear up the mess, as her children are always ________ whenever she tries to.

Nowadays everyone is responsible for________a harmonious society in China. [ ]

Whydon’t you have a notebook with you —I’ve_________it at home.