题目内容
Hurry up.The car is coming.
Wait a minute, Don't cross the street ________ the traffic lights are green.
[ ]
A.while
B.when
C.until
D.after
答案:C
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题目内容
Hurry up.The car is coming.
Wait a minute, Don't cross the street ________ the traffic lights are green.
A.while
B.when
C.until
D.after