A. early
B. sweedy
C. quickly
D. smoothly
A. they are cold to each other
B. they look away from each other
C. they misunderstood each other's signals
D. they are introduced at an early age
A. They eat and sleep each other
B. They observe each other's behaviors
C. They learn to speak each other's language
D. They know something from each other's voices
A. have common interests
B. are less different than was thought
C. have a common body language
D. are less intelligent than was expected