--- Hurry up. The bus is coming.
--- Oh, no. We mustn’t cross the street___________the traffic lights are green.
A.until | B.since | C.while | D.after |
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--- Hurry up. The bus is coming.
--- Oh, no. We mustn’t cross the street___________the traffic lights are green.
A.until | B.since | C.while | D.after |