These three girls do you know? a) how many b) which of c) what of

dear students and teachers,

today at 15/00 p.m. i found a purse in school cafeteria.it is a black wallet. it has 50 uah and flash card for 4 gbt. return for moneytary compensation. my contact: +3809595959595959

так лучше будет)

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