“…In particular, early and late bilinguals (heritage speakers and L2 learners alike) have been reported to display deficits in the domain of inflectional morphology and narrow syntax, and both groups also seem to have difficulties with discourse-level phenomena. The former problem is manifested in errors or non-target-like performance with case, gender, agreement, verbal aspect, and long-distance dependencies (Benmamoun, Montrul, & Polinsky, 2010;Benmamoun, Montrul, & Polinsky, 2013a, b;Hawkins & Hattori, 2006;Montrul, 2002Montrul, , 2005Montrul, Foote, & Perpiñán, 2008;Polinsky, 1997Polinsky, , 2006Polinsky, , 2008aPolinsky, , b, 2011White, 2003), and the latter problem involves infelicitous linguistic choices in contexts that require discourse tracking or external pragmatic knowledge to resolve apparent contextual optionality (Laleko, 2010;Laleko & Polinsky, 2013;Montrul, 2004;Serratrice, Sorace, & Paoli, 2004;Sorace, 2011;Sorace, Serratrice, Filiaci, & Baldo, 2009). marking, and phenomena governed by external pragmatic conditions, e.g., topicalization and pronominal anaphora (Sorace, 2011 and references therein).…”