单项选择题

A．To warn of dangers.
B．To explain traffic regulations.
C．To wake up drivers who are falling asleep.
D．To give directions.
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单项选择题
A．Alice is now in a very bad temper.B．Alice is now preparing for the test.C．Alice is now very happy.D．Alice is now ill.
A．Alice is now in a very bad temper.
B．Alice is now preparing for the test.
C．Alice is now very happy.
D．Alice is now ill.
单项选择题
A．Something in the Bermuda Triangle is strange.B．Where the Bermuda Triangle is.C．On very little about this.D．Ships were not lost.
A．Something in the Bermuda Triangle is strange.
B．Where the Bermuda Triangle is.
C．On very little about this.
D．Ships were not lost.
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