题目内容
【题目】A lot of trees _____ around here every year, and we can enjoy fresher air now.
A. were planted B. are planted C. will plant D. are planting
【答案】B
【解析】句意:每年在这里很多树木被种下,现在我们可以享受新鲜的空气。树木和种植是被动关系,因而使用被动句;every year每年,一般现在时态的时间短语。故选B
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