Помогите пожалуйста!!! Нужно выбрать соответствующие формы глаголов в скобках для завершения предложения.<br /><br /><br />
5. I opened the window, it (rained/was raining) heavily. A cold wind (blew /was blowing). Red, yellow and brown leaves (fell /were falling) down onto the ground. I (understood /was understanding) that autumn (came /was coming). <br />

5. I opened the window, it (was raining) heavily. A cold wind (was blowing). Red, yellow and brown leaves (were falling) down onto the ground. I (understood) that autumn (was coming).