Just then,another man, behind the first,spoke up，“Who are you?”.A. sittingB. to sitC. s

发布时间：2020-08-17 13:26:20

Just then,another man,      behind the first,spoke up，“Who are you?”.
A. sitting
B. to sit
C. sat
D. having sat

网友回答

(答案→)A. sitting
B. to sit
C. sat
D. having sat
解析：sitting behind the first表伴随。由于不存在先后动作对照，故不能选择选项D。
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