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On Sundays there were a lot of children playing in the park,____parents seated together joking.
为什么填 they?独立主格结构 请仔细分析下,
人气:263 ℃ 时间:2019-08-19 08:01:40
解答
填their.
独立主格省略BE动词,表达简便,具体定义不必再复制粘贴了.
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