The man who kept failing over and could not stand up was obviously ______.

A．unusual and unnecessary anxieties
B．misleading and exaggerated publicity
C．ideas based on known facts
D．abnormal and excessive activities

A．would like to study lessons through the Web
B．prefer studying in classroom to the online learning
C．enroll the lessons of Boston research firm Eduventures
D．feel safe in the classroom building than on the Internet