This book investigates how Moroccan EFL learners acquire both prepositional dative constructions (e.g. John gave a ring to Mary) and double object constructions (e.g. John gave Mary a ring). This alternation seems to involve only a straightforward structural transformation. However, various syntactic and semantic constraints were shown to regulate the behavior of this class of verbs in both the L1 and the L2. Given the cross-linguistic variation between English, the target language, and Moroccan Arabic, the learners L1, the dative alternation was deemed a good testing ground to see whether L2...