问题

Hey, man. You can’t cross the street now. You have towait ______ the traffic turn green.—Oh, sorry and thank you.

A:when
B:after
C:until
D:while

正确答案是：

同类题型

The news of our trip must __________ a secret for a little longer.[ ]

__ warm at night, I would fill the woodstove, then set my alarm clock for midnight so I could refill it.

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