根据汉语提示用单词的正确形式填空(7分)。
The Great Wall is one of the ______ _____ (奇观) of the world.
Liu Xiang’s coach noticed his ______ _____ (能力) in running and jumping.
You must ______ _____ (保证) that it won’t be lent to anyone.
What’s your ______ _____ (身高) ? About 1.7 metres.
The factory is causing a lot of ______ _____ (污染) .
He always gets on well with his ______ _____ (邻居们) .
I’m sorry I didn’t pay ______ _____ (注意力) to what you said.