根据首字母或填空,每空一词。 1. Zhu used to be shy, but now he is o______. 2. I don't like making speeches. I feel n______ talking in front of many people. 3. When I began to sing,he laughed and made me very ______ (尴尬的). 4. After a long trip to Europe, I felt very ______(精疲力竭的). 5. Last night a friend of mine invited me to a ______ party (化装舞会).