The present study examined the effects of the learning contexts in the L2, the effects of the level and the influence of the L1 in the L2 acquisition process. The independent variables included Japanese and Sri Lankan learners and ESL (English as a Second Language) and EFL (English as a Foreign Language) contexts. The Grammaticality Judgment Test was the dependent variable. The students who studied English as a Second Language (ESL) in Sri Lanka indicated higher accuracy of handling countable and non-countable nouns than the students who studied English as a Foreign Language (EFL). The influence of the L1 in the L2 seemed possible.