请根据句意及所给中文写出单词。
The Chinese New Year is in (一月) or February
Some students think English is a (困难的) subject to learn.
His exercise book is at home, so his teacher lets him (带来) it back.
You can see some cows, horses and (绵羊)on the grass.
My father is very _______(忙碌的)，and he has a lot of things to do every day.