20. This 12-year-old Amis boy from Hualian has a beautiful singing voice ________ has enchanted many
professional music producers.
(A) what
(B) that
(C) who
(D) thus
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統計: A(16), B(137), C(78), D(4), E(0) #2167771
統計: A(16), B(137), C(78), D(4), E(0) #2167771