题目内容
5. Not after going on a diet for three months,Jane felt very upset. (lose)
节食三个月没有减轻体重,Jane感到非常沮丧。
5. having lost weight考查非谓语动词.,逗号后是完整的句子,所以考查分词作状语.lose weight 和主语之间是主动关系,所以用现在分词doing。for three months要求用完成式having done0现在分词结构有:一般式doing,完成式having done, 完成被动式having been done
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