11. I feel obligated to give my opinion on the subject.

　　[A] required             [B] forbidden         [C] determined           [D] encouraged

　　12. Justices of the peace have. jurisdiction over the trials of some civil suits involving minor offenses.

　　[A] supremacy           [B] authority         [C] guidance             [D] obedience

　　13. The western slopes of the mountains of the Sierra Nevade Range are deeply incised by numerous streams.

　　[A] fed                 [B] cut               [C] flooded             [D] distended

　　15. The Jamestown settlers explored Virginia pimarily for fishing and trading, and only incidentally investigated traces of a lost colony on Roanoke Island.

　　[A] sporadically          [B] by chance          [C] by fault         [D] unaccountably

　　Keys: ABBBB