单词填空（共10小题，每小题0.5分，满分5分）
根据横线前首字母或括号内的汉语意思填写出恰当的词。Parents usually make the a_______ that children spend too much time chatting and playing games on the Internet.
The London Underground has the d_______ of being the oldest and most complex underground system.
Early underground lines needed large holes leading to the surface with spaces in between—at regular i________ to get fresh air.
Examples are often used and s ________ several purposes.
I don’t quite understand your point. Could you please be more e________ about it?
P________ (行人) are not allowed to walk on expressways.
Recently many senior students live around the school, a________ (陪伴) by their parent or grandparent.
There have been calls for Britain to w_________(退出) from the EU.
Good manners are a_________ (欣赏) all over the world. No one likes people who are rude.
When the phone rings, whatever the c_________ (情况), everything stops so that the call can be answered.