A.has became
B.one of
C.most serious
D.social problems

A.To grow
B.a tree
C.well-suited
D.it was

A.enjoys listening
B.the works
C.classic composers
D.is studying

A.Assignments are just a waste of time.
B.I am scared of deadlines.
C.Thanks, but that won't be necessary.
D.I don't really like this assignment.

A.Assignments are just a waste of time.
B.I am scared of deadlines.
C.Thanks, but that won't be necessary.
D.I don't really like this assignment.

A.Central Europeans and Australians
B.traits
C.skulls
D.Middle Easterners and Africans

A.two hypotheses and some evidence on the human origins debate.
B.evidence that supports the "Out of Africa" theory.
C.that fossils remain very much a part of the human origins debate.
D.the difficulties in obtaining agreement among theorists on the human origins debate.

A.period
B.duty
C.arrangement
D.activity

A.that it was disappearing
B.but it had disappeared
C.when it disappeared
D.than it has disappeared

A.argument
B.discussion
C.controversy
D.debate