It's two .The children _____football____in the football field.It's two .The children _____football____in the football field.A.play ,happy B .is playing ,happily C.are playing ,happily D.playing,happy

It's two .The children _____football____in the football field.It's two .The children _____football____in the football field.A.play ,happy B .is playing ,happily C.are playing ,happily D.playing,happy
It's two .The children _____football____in the football field.
It's two .The children _____football____in the football field.A.play ,happy B .is playing ,happily C.are playing ,happily D.playing,happy

It's two .The children _____football____in the football field.It's two .The children _____football____in the football field.A.play ,happy B .is playing ,happily C.are playing ,happily D.playing,happy
C
分析：某个时间正在做某事,主语是复数,排除A与B　,修饰动词用副词,再排除D
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C
It's two.现在两点。具体的时间点要用进行时。children是孩子们，复数名词，后面的be动词只能用are，所以选C

B the特指用is , 看 It's two 可以知道应该用进行时，副词修饰动词“玩”得开心