He insisted that we all _____ in his office at one o’clock.

Who do you think can do the voluntary work—______ who is willing to help can do it.

Dad , why should I stop ____ computer games —– For your health , my boy , I’m afraid you_______ .

__, Mr. Wells is scarcely in sympathy with the working class.

She felt _____ of having asked such a silly question when the audience couldn’t help laughing.[ ]