F
句意:如果他们在房间里枕头大战,贝丝的父母会生气的。
根据最后三行:Linda: Will it be OK to have a pillow fight in your room? Will your parents be mad at night? Beth: Not at all. Just let your hair down and have a great time!(琳达:在你房间里枕头大战可以吗? 你父母晚上会生气吗? 贝丝:没关系。 放松一下,玩得开心点! )可知贝丝的父母不会生气,本句错误,故填F