In English, [] and (] are allophones of the phoneme /l/ because they occur in i.e., theynever appear in the same sound contexts. ( always occurs before vowels (as in the wordeaf look), while (t] comes after vowels and before consonants (as in the word feel, cold)0。
A . a minimal set
B . regional differences
C . complementary distribution
D . free variation
B
oC
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