填空题

Urban crowdedness __________________________(将大大缓解) if only the fees charged on public transport were more reasonable.

【参考答案】

would be greatly relieved

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填空题

Showing some sense of humor can be an _____________________________(对付紧张情形的有效方法)。

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On other occasions he got on a bus or even a train, and simply sat there __________________ (直到有人向他索要车票)。