【推荐2】Bob has ________ (seven) ping-pong balls.

【推荐3】There are ________ (seven) days in a week. The ________ (seven) day is Saturday.

【推荐1】We should do more ________ /’eksəsaɪz/ to keep fit.

【推荐2】The trip was much more _________than I had expected. [ɪnˈdʒɔɪəbl]

【推荐3】Look at the phonetics and complete the blanks（根据所给音标完成句子）
1. A headmaster is in ________ of a school. [t∫ɑ:dʒ]
2. Can I try on that jeans, this pair is too short and ________. [taɪt]
3. It is ________ to walk in wet and dirty street. ['ɔ:fl]
4. I’d like to have more ________ and trips to other places. [æk'tivitiz]
5. We all know the ________ between Mr. Wind and Mr. Sun. [,kɒmpə'tI∫n]