had not been finished
首先but连接两个并列的句子,but前后的句子都具有完整的结构,都有主谓宾,所以横线上应该填谓语动词而不是非谓语动词.
其次,由but前面的句子是一般过去时,而but后面的句子发生在前面句子之前并将继续发生下去,所以应该用过去完成时,根据句子意思用否定形式.
He offered us a lift when he was leaving the office ,but our work__ .We declined his offer.
He offered us a lift when he was leaving the office ,but our work__ .We declined his offer.
空中可以填was not finished吗?
空中可以填was not finished吗?
英语人气：602 ℃时间：2020-04-20 04:07:39
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