Zebua, B.A., Lumban Raja, V. and Ginting, F.Y.A. 2020. THE ABILITY OF THE SECOND YEAR STUDENTS OF SMP KATOLIK TRISAKTI 1 MEDAN IN USING VERB BE. Kairos English Language Teaching Journal. 1, 3 (Jun. 2020), 86–102. DOI:https://doi.org/10.54367/kairos.v1i3.715.