阿摩線上測驗
19 You ______ stop before a red traffic light or you’ll be given a ticket.
(A) may
(B) must
(C) will
(D) could
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統計： A(148), B(3632), C(125), D(141), E(0) #418776
統計： A(148), B(3632), C(125), D(141), E(0) #418776
