“这个寒假有21天”用英语怎么说啊，可不可以说“21days consist of my winter vacation”

“这个寒假有21天”用英语怎么说啊，可不可以说“21days consist of my winter vacation”

21days consists of my winter vacation 是可以这么写的，但通常不这么表达，这样感觉怪怪的，我的寒假是由21天构成的？时间名词做主语时，无论单复数，谓语都应该用单数哦！切记~~~~~

There are 21 days in the winter vacation.

i am 21 days about my winter vacation 就行了，听懂足够了。

I have 21 days in this winter holiday

不可以 应该是：We have 21 Days for our Winter Holiday.

I have 21 days in this winter holiday.

this winter vacation, i plan to build a strong body and make my study better. at 7 o'clock, i will get up and brush teeth and wash my face. after this, i do some exercises for half an hour. i like sports. so i can run in the ground. sports is a good way to keep healthy. in the afternoon, i will do my homework for 3 hours. i am not good at english, so i should spend more time on it. after dinner, i will do some housework for my mother.all these are my plans during winter vacation.