To investigate the influence of semantic/pragmatic variables on children's production of verb-phrase anaphora (VPA), a spoken sentence completion task (e.g. John is throwing a ball and... Mary is too) was administered to four-, seven- and ten-year-olds. The frequency of VPA production was affected by whether the two clauses had the same or different polarity and by whether the actions were portrayed is simultaneous or sequential. These effects interacted in complex ways with age and with the presentation order of the polarity types. We speculate that developmental changes in the influence of semantic/pragmatic factors may, be linked to increases with age in the strength of syntactic priming effects.