问题

Hurry up! The bus is coming.—Wait a minute. Don’t cross the street ____________the traffic lights are green.
A:while
B:when
C:until
D:after;
B:when
C:until
D:after;
正确答案是:
同类题型
I’ve taken someone else’s green sweater by mistake.— It _____ Harry’s. He always wears green. [ ]
______ about his own safety, though he was ingreat danger himself
There is 8-year-old boy playing Chinese chess with his friend in the classroom.
I’m lucky _______ the thing I enjoy doingmore is ________ I’ve ended up doing.