根据短文及首字母提示填入恰当的单词完成短文。
Dear Ted,
Thank you for your i 1 I can't v 2 you this week because I'm very busy. This afternoon I have to go to the c 3 with my brother. You know I like music very much. And on T 4 ,I have to help my brother with his c 5 because he isn't good at chemistry. On Wednesday, I'm having volleyball t 6 with my friends. And on Thursday evening,I have a piano l 7 . I have to help my mother b 8 my sister on Friday. On w 9 , I'm going to Hong Kong for v 10 . Can you go to Hong Kong with me?
Write soon.
David
l. invitation 2. visit 3. concert 4. Tuesday 5. chemistry 6. training 7. lesson 8. babysit
9. weekends 10. vacation