单词拼写（共15空格，每空限填一词， 注意用正确的形式，每空1分，共15分）
You are only________(稍稍)underweight for your height.
The Antarctica is a________(大陆)centered roughly on the South Pole.
The company has a long________(传统)of fine design.
Opportunities________(存在)in our company for experienced engineers.
The________(氛围)over dinner was warm and friendly.
There was a shortage of________(氧气)at the top of the mountain.
No one is to see the document without the________(许可)of the writer of the report.
I have only a________(有限的)understanding of French.
The central government has made a series of________(农业的)policies to encourage farmers to work the land.
He cheated her, which she would never________(原谅)．
She was________(生育)of a healthy boy weighing 3 kilogrammes.
I hope my kids will________(表现好)themselves while I am away.
It cost me a lot to travel around the world, but it was really________(值得的)，for it broadened my views.
The police________(观察)a man in black entering the bank.
Genius is 10%________(灵感)and 90% perspiration.