You don't have to pay for your flights——they___in the price of your holiday
问题描述：
You don't have to pay for your flights——they___in the price of your holiday
A are included B have included C include D will include
答
A
they 指的是“flights”
题目意思是：
你不必为你的飞行付费,飞行（费用）已经（注意:可以加个“被”,有助于理解,但翻译出来建议不加,翻译通常是很灵活的哦……）包含在你假期旅行费用之内啦.
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