.A ________may be given ____means of flags, lights, and guns. A．sign; by B．signal; in C．signal; by D...
2023-01-31 01:02:34 97次 2010届高三英语冲刺单项选择精选（四） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
.A ________may be given ____means of flags,
lights, and guns.
|
A．sign; by
|
B．signal; in
|
C．signal; by
|
D．sign; in
|
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