问题
选择题
If you have doubts about the attack, Mr. Brown can tell you the truth as he witnessed ______. [ ]
A. it
B. one
C. them
D. those
答案
答案：A
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If you have doubts about the attack, Mr. Brown can tell you the truth as he witnessed ______. [ ]
A. it
B. one
C. them
D. those
答案：A