单词拼写（根据所学过的课文、句意及所给首字母或中文注释写出正确的单词,共10分）
It was quite terrible. It took me some time to c______ myself down.
Some of the rescue workers and doctors were _______ (被陷入困境) under the
ruins.
He thought I had known the fact. But a_______, I knew nothing about it
I'm terribly sorry. I didn't do it on p__________.
The people p______ at the meeting were all for the suggestion.
If you spend more time reading your English, you can improve it r_______.
In the city, the water pipes in some buildings cracked and ________  (爆裂).
The t________ of the discussion today is about how to spend our coming holiday.
This song sounds f________ to me. I must have heard it sung somewhere before.
Please list the countries that use English as an ________（官方）language.[来.