She _______(add) that having conversations with friends was not helpful at all.

She _______(add) that having conversations with friends was not helpful at all.
这里要填什么,为什么
从语法角度试做分析
英语人气:131 ℃时间:2019-11-05 04:12:43
优质解答
added
句中动词 was 是过去式,所以,主句动词也用过去式
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