题目内容
—Excuse me, could you tell me how to reach the nearest hospital?
—Walk straight on_________________ you see a white house on your right.
A.when B.since C.until D.while
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题目内容
—Excuse me, could you tell me how to reach the nearest hospital?
—Walk straight on_________________ you see a white house on your right.
A.when B.since C.until D.while