问题
选择题
— Hurry up! The bus is coming.
— Wait a minute. Don't cross the street the traffic lights are green. [ ]
A．until
B．after
C．while
D．since
答案
答案：A
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— Hurry up! The bus is coming.
— Wait a minute. Don't cross the street the traffic lights are green. [ ]
A．until
B．after
C．while
D．since
答案：A