Изменить предложения, добавив вместо must - have to.
Например: Gregory must get up at 7 o'clock every day./Gregory will have to get up at 7 tomorrow.( Да, и кстати, сначала сказано что он должен делать каждый день, а надо сказать что он должен сделать завтра). Вот предложения:
1) Gregory must make breakfast every day.
2) Gregory must do morning exercises every day.
3) Gregory must take his dog out every day.
4) Gregory must go to school every day.
5) Gregory must water the flowers every day.
6) Gregory must prepare tea for the family in the evening.

Спасиибо)*

Gregory will have to make breakfast tomorrow.Gregory will have to do morning exercise tomorrow.Gregory will have to take his dog out tomorrow.Gregory will have to go to school tomorrow.Gregory will have to water the flowers tomorrow.Gregory will have to prepare tea for the family in the evening tomorrow.