根据下列句子及所给汉语注释,写出空缺处各单词的正确形式。每空只写一词。
1. The ______(广告) on TV always make me bored, so I turn off the TV set.

2. Miss Tang has no (感觉) of direction. She often gets lost.

3. His cousin will go to the USA for (进一步的) study next year.

4. We will have a new subject in Grade 8. It is (物理).

5. Amy is becoming much (健康) after playing softball.

Many teenagers feel that the most important people in their lives are their friends. They believe that their family members don't know them as well as their friends do. In large families, it is quite often for brothers and sisters to fight with each other and then they can only go to their friends for ideas. It is very important for teenagers to have one good friend or a group of friends. Even when they are not with their friends, they usually spend a lot of time talking with each other on the phone. This communication (交流) is very important in children's growing up, because friends can discuss something. These things are difficult to say to their family members. However, parents sometimes try to choose their children's friends for them. Some parents often may even stop their children from meeting their friends. Have you ever thought of the following questions? Who choose your friends? Do you choose your friends or your friends choose you? Have you got a good friend your parents don't like? Your answers are welcome.
( ) 1. Many teenagers think that ______ can understand them better.
A. friends
B. brothers
C. sisters
D. parents