阅读短文，然后从方框中选出可以填入文中空白处的单词
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Last month, I went to swim in the sea. I____ really far, past the rocks and out to sea. Then I saw ____ moving towards me. It was ____ and grey, with a large fin. It was a shark! I began to swim ____, but he beach was too far away. The shark started to swim around me.
I was really scared, ____ another creature appeared next to me in the water. It was a dolphin! It ____ me away from the shark. I sat on its back as it swam ____ the beach.
Soon we were near the beach. The shark did not ____ us. As soon as I stepped ____ the beach, the dolphin swam away. I will always remember how this ____ animal saved my life.
