23. During the weekends, he likes hiking in the mountains, swimming in the local pool, and _____ in the park.
(A) to run
(B) run
(C) running
(D) ran
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統計: A(71), B(115), C(2533), D(52), E(0) #3190676
統計: A(71), B(115), C(2533), D(52), E(0) #3190676