—What were you trying to prove to the police?—I was last night .A. ThatB. WhenC. WhereD. W

问题补充：

—What were you trying to prove to the police?

—I was last night .

A. That

B. When

C. Where

D. What

答案：

A. That

B. When

(答案→)C. Where

D. What

解析：可联系答.案.网客服索取。