Hoàn thành các câu sau

1.      That ……………………. has composed a lot of beautiful songs.              (music)

2.      A holiday in America can be…………………….  cheap.                          (surprise)

3.      We should learn all the new words by heart in order to ………..….  our vocabulary.   (rich)

4.      In Viet Nam, we usually wait for the ………..….  person to sit down before you sit.     (old)

5.      It was very ………………….of you to interrupt your teacher when he was speaking.  (polite)