25 нужно написать 14 предложений на с tag questions ( разделительные вопросы)

My sister is a very good dentist, isn’t she?They are not writing now, are they?Jim has got much money, hasn’t he?Olga can’t swim fast, can she?Students must come to University in time, mustn’t they?You will cross the street at the green light, won’t you?Olga met her boy-friend yesterday, didn’t she?Father didn’t buy car last week, did he?Father didn’t buy car last week, did he?