1)I usually do this activity alone. Reading,
2)I usually do this activity with other people. Basketball
3) I spend money when I do this activity. Shopping, gambling
4) Many people in my country enjoy this. Cooking, listening to music
5) I must use special equipment (guitar, skis, etc.).Skating
6) This activity is noisy.Singing
7) This activity is quiet. Stamp collecting
8) This activity is bad for my health. Playing computer games, drinking alcohol
9) This activity is good for my health. Dancing
10) This activity can be dangerous. Parachute jumping
11) I must think a lot to do this activity. Learning English, solving crossword puzzles