He can't forget the year____he lived in the country.
He can't forget the year____he lived in the country in.
He can't forget the year in____he lived in the country .
He can't forget the year____he spent with his friend in the country.
He can't forget the year____was very hot in the country.
He can't forget the year____days were interesting and colorful in the country.
He can't forget such the year____he spent in the country.