根据《担保法》的规定，下列各项中，属于留置担保范围的有( )。A．主债权的利息 B

     Have you ever had problems in your life that got in the way of your happiness? If so, you will find
Being a Happy Teenager by Australian writer Andrew Matthews (1) _____. In his book, Matthews
tells us (2) _____ to have a happy life, and answers some common (3) _____  teenagers have.
     The book says we should stop (4) _____ angry. The book also (5) _____ us some useful skills
such as how to put what you have learnt into mental (心理的) pictures to make your memory better.
     Success comes from a good (6) _____ Some schoolboys have problems such as being too tall
or too short. But Matthews tells us (7) _____ comes from thinking about things in a positive way.
If you are tall, people notice you, and you can get a (8) _____ view at the movie; if you are short,
your clothes and shoes won’t take too (9) _____ room in your bedroom! This is Matthews’ most
important lesson: You can (10) _____ to be happy!