public IActionResult NewTest() { ViewBag.ListeningQuestionCount = _TestCategoryManager.ListeningQuestionCount(); ViewBag.ReadingQuestionCount = _TestCategoryManager.ReadingQuestionCount(); ViewBag.SpeakingQuestionCount = _TestCategoryManager.SpeakingQuestionCount(); ViewBag.WritingQuestionCount = _TestCategoryManager.WritingQuestionCount(); // Lấy danh sách GV Hướng dẫn ViewBag.Instructors = _UserManager.GetAllInstructors(); return(View()); }