Find out the incorrect parts and put the corresponding letter after the statement.（） There will be many students come to attend my classes because I am a popular lecturer at my university.

A.In the past 3 years
B.have been taken place
C.loads of buildings
D.torn away and rebuilt

A.will in Beijing University
B.an international academic conference
C.one of my best friends
D.at Beijing Airport.

A.I think
B.can to finish
C.never relies
D.thers’assistance