选用括号内所给动词的适当形式填空。

My family lived in a big city, and we had no garden, but I often (go, went) to a small park near my home. There (are, were) a lot of trees in the park. Early in spring, those trees (get, got) green. I liked to see all the green leaves. In summer there were flowers everywhere. I often (read, reads) picture books on the bench. In autumn, the leaves turned yellow and red. I often (take, took) a walk with my parents. I also (like, liked) to walk after supper with my grandpa. He (know, knew) a lot of stories. Every time we had a walk together, he (tells, told) me an interesting story. When I (am, was) young, I (have, had) a good time in the small park.