根据句意及中文提示补全单词 ( 共10分，每小题1分)
I have been to Beijing___________(两次) with my parents.
Do you like ________(古典的) music?
It is __________(容易) to learn Japanese than English.
He always ___________(忘记) his parents` advice.
The ___________(难题) is too hard for most of us. Maybe Tony can solve it.
After two hours` walk, he felt very ____________.(累)
Beijing Opera is a kind of ___________(传统的) music.
You have to hold your _____________(呼吸) before you shoot.
In the _____________(西方) countries, Christmas Day is the most important day.
Our children have grown up and have children of their _______(自己的).