good (simple form) - better (comparative form) - the best (superlative form). interesting - more interesting - the most interesting. economical - more economical - the most economical. large - larger - the largest.
Ответ дал: Гость
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
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