Bài tập 4: Chia đúng các động từ sau ở thì quá khứ đơn và quá khứ tiếp diễn: In my last holiday, I went to Hawaii. When I (go) (1) …to the beach for the first time, something wonderful happened. I (swim) (2) in the sea while my mother was sleeping in the sun. My brother was building a sand castle and my father (drink) (3) … ………. some water. Suddenly, I (see) (4) was seing a boy on the beach. His eyes were blue like the water in the sea and his hair (be) (5) … beautiful black. He was very tall and thin and his face was brown. My heart (beat) (6). I (ask) (7) him for his name with a shy voice. He (tell) (8) … ………me that his name was John. He (stay) (9) … ………with me the whole afternoon. In the evening, we met again. We ate pizza in a restaurant. The following days we (have) (10) lot of fun together. At the end of my holiday when I left Hawaii I said goodbye to John. We had tears in our eyes. He wrote me a letter very soon and I answered him.