Long ago, two blind (盲的) men were good friends and they ______ together. One day, they wanted to cook some fish soup. So they ______ a big fish in the market and started to cook. One hour later, they began to taste the fish soup, but they ______ find any fish in it. So they felt angry. Both of ______ thought the other ate the fish up. A little boy heard the noise and came to ______ them. He laughed loudly ______ he saw the fish on the table. The two men didn’t put the fish ______ the pot (锅) at all!
1．2．3．| A．couldn’t | B．mustn’t | C．shouldn’t |
4．5．6．7．
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