单项选择题

A．Right-handed people are superior to left-handed people.
B．Right-handedness is determined genetically, but left-handedness is learnt.
C．About 18% of identical twins are left-handed.
D．Scientists have not yet reached agreement on the causes of left-handedness.
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单项选择题
A．Both live on campus.B．Both live off campus.C．The man lives on campus; the woman lives off campus.D．The woman lives on campus; the man lives on campus.
A．Both live on campus.
B．Both live off campus.
C．The man lives on campus; the woman lives off campus.
D．The woman lives on campus; the man lives on campus.
单项选择题
A．Going back to the boarding school.B．Three month’s imprisonment.C．Never living with his mother again.D．120 hours of community service.
A．Going back to the boarding school.
B．Three month’s imprisonment.
C．Never living with his mother again.
D．120 hours of community service.
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