Question

【题目】过马路时你必须特别小心车辆。 (be especially careful with…)

Answer 1

【答案】You must be especially careful with the traffic when you cross the road.
【解析】必须must be，小心be careful with，过马路cross the road，此句应该用时间状语从句，用when来引导，所以答案是You must be especially careful with the traffic when you cross the road.