HE, HET, HETA

Answers
(1) het – introduction of new “character”—the island of Rotuma
(2) he – followed by number-like word his 'several'
(3) het – indefinite; 'without (an) end’
(4) heta/het'ag – time expression
(5) he – followed by rua
(6) heta – second reference; definite
(7) heta – second reference; definite
(8) he – followed by rua
(9) he – followed by rua
(10) het – indefinite; first mention
(11) het – indefinite; first mention