BounUnit 21 Is done/ was done (passive 1.)Unit 22 Is being done / has been done (passive2). Learn about passive continuous and passive perfect. Formular +Present continuous. S +…Apr 5, 2019Apr 5, 2019
BounLao-Top Foundatoin F2 GrammarUnit 21 Is done/ was done (passive 1.) Pasive is used when subject is done someting but don’t know who is doing and want to emphasize the…Apr 5, 2019Apr 5, 2019