21. Bob: Stop! We can’t cross the street here.
Tom: ________________
Bob: We may get hit by a car.
Tom: Well, it doesn’t look dangerous to me at all.
(A) Why not?
(B) That’s right.
(C) How’s the traffic?
(D) We’ve got to go.
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統計: A(301), B(17), C(28), D(4), E(0) #683676
統計: A(301), B(17), C(28), D(4), E(0) #683676