6. I (buy) earrings that I (dream) about for a long time.

6. I (buy) earrings that I (dream) about for a long time.

Для решения этого задания необходимо использовать Past Simple, Past Continuous, Past Perfect или Past Perfect Continuous.

Первое действие должно быть выражено в Past Simple, а второе - в Past Perfect Continuous, так как одно действие произошло после другого.

I bought earrings that I had been dreaming about for a long time.

Ответ: I bought earrings that I had been dreaming about for a long time.