1 The glosses used in this paper are as follows: Nom = nominative Case, Acc = Accusative Case, Dat = dative Case, Q = Question particle, Cop = copula, Top = topic marker, Nmlz = nominalizer. 2 Unlike English sluicing which is generally considered as TP deletion following overt wh-movement, as in (i), Japanese sluicing-like construction is considered as the deletion of the presupposition part of...