___, Zhu Xi included

In modern society, alternative energies __________traditional ones are playing an important role in our daily life. That’s justbecause scientists have made great breakthroughs _________ the development ofscience and technology.

Beijing has improve a lot these years.—_____ and_____.

If you ________ smoke in the room, please keep the windows open.

Mrs. Li explains English grammar so ________ that even I can understand it.