14. Robert was the only _____ to the car accident. The police had to count on him to find out exactly how the accident happened.
(A) dealer
(B) guide
(C) witness
(D) client
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統計: A(9), B(16), C(140), D(14), E(0) #467636
統計: A(9), B(16), C(140), D(14), E(0) #467636