Английский!! Помогите пожалуйста!!!....

Задание: Fill in the correct propositions.

Варианты: at • in • for • by

Текст:
1. The offices are_______77 Oxford Street
2. He lives _____ The suburbs and commute to city every day
3. There's _____ a beautiful cottage sale in our village
5. Your order will be sent ____ post within 3 days
6. There's a restaurant _____ the top of the Eiffel Tower

1. The offices are at 77 Oxford Street2. He lives in The suburbs and commute to city every day3. There's for a beautiful cottage sale in our village5. Your order will be sent by post within 3 days6. There's a restaurant at the top of the Eiffel Tower