——Good news .We will have a_____holiday.---I've heard of it .But it's coming in______.A、three days; three days'time B、three days';three days'C、three-day;three days D、three days;three-day time选择哪一个?为什么?
问题描述：
——Good news .We will have a_____holiday.---I've heard of it .But it's coming in______.
A、three days; three days'time B、three days';three days'
C、three-day;three days D、three days;three-day time
选择哪一个?为什么?
答
A.a;/ B.an;/ C.the;a D./;an B email为可数，且开头的e为原因，用an. 而后面不加冠词，直接用。
答
选C
a three-day=three days' 因为前面有 a 所以选C
in three days 过三天
答
C
a three-day holiday中,.three-day作定语,表为期三天的
in three days三天后
答
选C three-day 是一个形容词，三天的
In three days 是三天以后