What does "enterprise" in the last paragraph refer to？
A. The course of an action
B. A firm or a company
C. The exploration of something
D. A spirit of working hard
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What seems to be the biggest problem with an unwed teenager with children？
A. Future marital instability.
B. Low levels of completed schooling.
C. Low family income.
D. Being poor.
Generally speaking, the attitude towards teenage out-of-wedlock childbearing is
A. pitiful
B. indifferent
C. passionate
D. miserable
A．8 hours.B．9 ～ 10 hours.C．10 ～ 11 hours.D．12 hours.
A. 8 hours.
B. 9 ～ 10 hours.
C. 10 ～ 11 hours.
D. 12 hours.
A．nextB．secondC．otherD．last
A. next
B. second
C. other
D. last
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