21. My son is active and full of ______ . Even after a day of running around and playing games, he doesn’t seem tired at all.
(A)spirit
(B)usage
(C)humor
(D)energy
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統計: A(33), B(10), C(12), D(613), E(0) #567862
統計: A(33), B(10), C(12), D(613), E(0) #567862