Lesson 22 - Business Trip - Main m4e6o

In this episode: learn to use the perfect aspect particle ?(le) to talk about actions that have occurred or are completed; talk about things you “have to do” or “must do” with ?(d?i); form rhetorical questions with the ??(búshì)…?(ma) construction; listen to a contextual dialogue where James talks about his trip to Beijing. 5x3o4l