问题描述:
She saw some boys ____ soccer on the playground when she was on the way to the classroom
A.played B.to play C.playing
横线上该填什么,为什么呢
还有There are many children playing.
为什么playing前没有加be动词,说出道理,出现这种情况的句子该怎么用,那种句子才用到这种情况
真心求知,
可是saw是see的过式呀
A.played B.to play C.playing
横线上该填什么,为什么呢
还有There are many children playing.
为什么playing前没有加be动词,说出道理,出现这种情况的句子该怎么用,那种句子才用到这种情况
真心求知,
可是saw是see的过式呀
问题解答:
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