高中英语的语法填空,

题目

高中英语的语法填空,
Christmas is ___________ special holiday when__________ whole family ____________ (be)         supposed to get together.最后一个空为什么填are而不是were啊
.It's not _________ good idea to drive for hours whitout ___________ break.18.My neighbour asked me to go for ________ walk,but I don't think I've got ________ energy.同样是最后一个空,为什么填the,是怎么看出要填the的,从语法上解释啊,

答案

1,因为前面的主句用的时态是is.说明是一般现在时态,所以不用were而用are.2.It's not _a__ good idea to drive for hours whitout __having a_ break.(having可以不填)3.因为energy是不可数名词,不能用a修饰,又因为是...