1 . The letter between friends is always written in an______(formal) style.

2 . The book is ______ (design) for the use of beginners.

3 . Every minute of the day is filled with ______ (紧急的) matters.

4 . Chess is a very ______ (challenge) game for me.

5 . I find playing computer games ______ (relax) and it takes my mind off my work.

6 . Faced with the disappointing result, we felt ________ (disappoint). (所给词的适当形式填空)

7 . The __________(乡村的) scenery was so beautiful that he decided to stay one more week before going back to the city. (根据汉语提示单词拼写)

8 . At the age of seven, he was sent to the school to get __________(正式的) education. (根据汉语提示单词拼写)

9 . The boss was so young that he was much __________(低年级的) to some of his workers. (根据汉语提示单词拼写)

10 . It’s t________________ of him to be late for the class every day. (根据首字母单词拼写)