Фрагмент из книги.
Underline the correct alternatives.
1 I go to the dentist every/on six months.
2 Do you play much sport at/in the weekend?
3 See you in/on a minute.
4 I usually meet Sarah at/on Wednesdays.
5 I’m busy on/in the morning but we can meet later.
6 I go running every/in day.








