One of the most rewarding aspects of teaching young children is seeing them _____ s

A.one of a most complex body

B.one of the most complex bodies

C.one of the most complex body

D.one of the complex most body

Jim is one of the most popular()in my company.

A.classmates

B.citizens

C.colleagues

A.music

B.the music

C.one

D.the one

The process of learning is one of the most demanding and most __________processes that everyone can experience.

A． revolving

B． rewarding

C． respectful

D． resourceful

A.Communication

B.Note

C.Meeting

D.Report