The children () playing in the park.填空为什么用are？ there are a lot of children pl...

The children are playing in the park. \u53d8\u6210\u7279\u6b8a\u7591\u95ee\u53e5\u600e\u4e48\u53d8\uff1f

\u7b54\uff1aWhat are the children doing in the park? \u6216\u8005\u8bf4\u201c Where are the children playing? \u201d

\u6709\u5f88\u591a\u5c0f\u5b69\u5728\u516c\u56ed\u91cc\u73a9

The children (are) playing in the park.孩子们在公园里玩耍。
主谓一致，主语是children，孩子们是复数。

因为children 是一个复数形式，因此谓语动词用复数。