Sentence:  Maggie could n't seem to get her strength back or catch up with herself with all she had to do : there was the big basket of clothes to be coaxed through the rackety old washer and lugged out and lugged back ; there was the daily round of household chores in which Maggie insisted on <WSD>participating</WSD> . 
Meaning of the word marked with <WSD> tags:  share in something