来自赫赤的问题
ChildrencelebrateHalloweenby____(play)thegame"trickortreat"快
ChildrencelebrateHalloweenby____(play)thegame"trickortreat"
快


ChildrencelebrateHalloweenby____(play)thegame"trickortreat"快
ChildrencelebrateHalloweenby____(play)thegame"trickortreat"
快
playingby是介词因此后面的动词得是动名词所以加ing