During the past year at high school, I had many experiences     1     were unforgettable. One of them was when our class     2     (prepare) for a group singing competition. In order to win the competition, we went all out for it. During the week before the competition, we practiced     3       (sing) in our free time. Although it was     4     hard job, every participant took it     5     (serious) and did their best. Thanks to our effort, we won the     6       (one) prize. Hearing the     7       (excite) news, we were all wild     8     joy. The moment we got the prize, an old saying hit     9       (me) mind----No pains, no gains. It was hard work, but during the course of preparation, we developed friendship,    10     (confident) as well as understanding.