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Read the text below and think of the word which best fits each space.

The spread of common law in the world (1)___ due both to the once widespread influence of (2)___ in the world and the growth of its former (3)___, the United States. Although (4)___ in one common law country cannot directly support their decisions (5)___ cases from another, it is permissible (6)___ a judge to note such evidence in giving (7)___ explanation. Nevertheless, political divergence has (8)___ legal divergence from England. Unified federal law is only a small part of American law. Most of it is produced by (9)___ states and reflects various (10)___. The (11)___ of Louisiana, for example, has a Roman (12)___ form of law which derives from its days (13)___ a French colony. California has a case (14)___ tradition, but its laws are (15)___ as extensively as many Continental systems. Quebec is an island of French (16)___ in the Canadian sea of case law. In India, English (17)___ law has been codified and adopted alongside a Hindu tradition of law, Sri Lanka has inherited a criminal (18)___ from the Russian law introduced (19)___ the Dutch, and an uncodified civil law introduced by the British.