A.when he came back
B.after he had come back
C.as soon as he had come back
D.by the time he comes back

A.Misunderstandings in communication
B.Interpretations of gestures in different cultures
C.The significance of non-verbal signals in America
D.Non-verbal communication across cultures

A.indisputable
B.arguable
C.doubtful
D.hesitated

A.Moreover
B.However
C.Therefore
D.So that

A.each
B.much
C.every
D.most

A.which
B.whom
C.who
D.what

A.done
B.played
C.made
D.brought

A.done
B.played
C.made
D.brought

A.Having decided
B.Decided
C.To decide
D.Being decided

A.was walking
B.is walking
C.walked
D.walks