22. The police __________ that the car had been stolen when they arrived at the scene.
(A) has discovered
(B) have discovered
(C) discovers
(D) discovered
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統計: A(1), B(0), C(1), D(1), E(0) #3353230
統計: A(1), B(0), C(1), D(1), E(0) #3353230