题目内容
It was very windy and cold, _____ they were still working hard in the field.
A. as B. till C. but
A. as B. till C. but
C
试题分析: as因为,随着,虽然,当……时,till直到……为止,but但是,而是,然后。根据句意:天刮着大风还很寒冷,他们却一直在地里努力地工作。可知这里需要一个表示转折的连词。故选C。

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