"You're always so energetic! Your eagerness about education is worth to be spread all over the world where they are interested in education. I want to say standing second language acquisition viewpoint. Most of materials have been focused about…"
"In my opinion, I think that the exact grammar understanding is important. What are the differeces among 'was(were) -ing, have been -ing, and had been -ing'? Among 'be -ing' forms not in gerund, participles but in tenses, there…"