Ⅰ.单词拼写
1．Don't________(犹豫) to take action.
2．To strengthen her________(能力); she took a course after work.
3．My mother bought a shirt for me at a ________(打折)．
4．A great many________(申请人) wanted to apply for this job.
5．He________(承认) having done wrong.
6．He showed________(同情) for the dead in the disaster.
7．It's a________(惭愧) to cheat in the exam.
8．The ________(平衡) of nature is important.
9．The ocean was polluted by the________(泄漏的) oil.
10．There was another________(威胁) from outer space.
