单选题
The two witnesses who saw the shootings were able to______who had fired first.
A、
encounter
B、
highlight
C、
testify
D、
identify
【正确答案】
C
【答案解析】
[解析] 本题空格处是说能够证明谁先开枪。C项“testify作证，证明”符合题意。其他三项“encounter遭遇；highlight加亮，突出；identify鉴别”都不正确。
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