After the goal the footballers began to the stadium​

1. i must brush my teeth. - anyone, most likely some disobedient child.

2. i have to brush my teeth. - a patient of dentist's, a human with diseased tooth.

3. i must tidy my room. - anyone, most likely some disobedient child.

4.i have to tidy my room. - anyone, probably a child.

5. i must take the medicine. - someone with easy form of illness.

6. i have to take the medicine. - most likely, a regular patient

1. мне приносит невезение плохое настроение2. удачу приносит мне хорошее настроение

1. i bring bad luck bad mood2. success brings me good mood