Sentence:  He improvised as he went along , <WSD>completing</WSD> a life-size clay figure , then bought yards of an inexpensive material from a draper , wet the lightweight cloth in a basin and covered it over with clay that Argiento brought from the bank of the Tiber , to the consistency of thick mud . 
Meaning of the word marked with <WSD> tags:  come or bring to a finish or an end; others finished in over 4 hours"