I. 1. been hard on

   2. left out

   3. call in

   4. for no reason

   5. in agreement

   6. let; down

II. 1. scoring

    2. thinking

    3. knocking

    4. agree with

    5. give up

III. 1. uncomfortable

     2. think

     3. heard

     4. waiting

     5. in good condition

     6. a superstar

IV. 1. put so much pressure on

     2. learn from

     3. take his place

     4. to clean up

     5. rather than

V. One possible version:

Everyone has his troubles, so do I. Now let me tell you my troubles and how I deal with them. The first trouble is my homework. Half of my troubles are about my homework. I have too much homework. Though I don’t finish my homework until eleven o’clock at night, I try my best to finish it every day. Next trouble is my exam results. About 40％ troubles are about them. I think I should learn from mistakes. In addition, the arguments with my good friends make me upset. I know I should communicate with friends much more. And the last trouble is about money — I often don’t have enough money. I have to make plans to spend money. We all have different kinds of troubles. We should learn to deal with them. Listen to the song named Trouble is a friend. We should be positive, and never let them affect our life.