people are talking and laughing
people are talking and laughing like old friends改为一般疑问句做肯定及否定回答
there are thousand of people in the town centre划线部分提问 划线部分为thousands of
polly and Annie are waiting for a taxi划线部分提问 划线部分为a taxi
there are thousand of people in the town centre划线部分提问 划线部分为thousands of
polly and Annie are waiting for a taxi划线部分提问 划线部分为a taxi
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