题目内容
4. I have booked in advance;there were plenty of tickets left.
4. needn't
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2. 目前世界上使用的语言和方言估计有几千种。
there are several thousand languages and dialects spoken in the world today.
题目内容
4. I have booked in advance;there were plenty of tickets left.
4. needn't
2. 目前世界上使用的语言和方言估计有几千种。
there are several thousand languages and dialects spoken in the world today.