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判断对错,动词watch后面加do还是doingInspring,it'sfuntowatchbirdsmaketheirnests.Inspring,it'sfuntowatchbirdsmakingtheirnest.也有可能都不对

题目详情
【判断对错,动词watch后面加do还是doing
In spring,it's fun to watch birds make their nests.
In spring,it's fun to watch birds making their nest.
也有可能都不对
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答案和解析
两种都可以的.