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lop9a8thcstb2016
2 năm trước
Thả một hòn đá từ mép một vách núi dựng đứng xuống vựt sâu.sau 3,96s từ lúc thả thì nghe thấy tiếng hòn đá chạm đấy vực sâu.Biết -9,8m/s và vận tốc truyền âm trong không khí là 330m/s tìm chiều cao vách đá bờ vực đó
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Put the correct verb form of the past tenses. 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 castle and my father (drink) 3 ........................ some water. Suddenly I (see) 4 ........................ 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 ........................ fast. 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 ........................ a lot of fun together. At the end of my holidays when I left Hawaii I said good-bye to John. We had tears in our eyes. He wrote to me a letter very soon and I answered him.

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