（七年级英语）根据上下文意思,补全短文,没空一词

（七年级英语）根据上下文意思,补全短文,没空一词
It's a fine Saturday morning.There 1.________many children.They are2.________happily.Some are playing____under a big tree.Some girls are singing and 4._______.Some boys are running 5.___the hill.Li Lei's6._______by the lake.He's reading a story.7._______is Wang Lin? He's standing over there.8._____is he doing? He's looking 9._____a nice butterfly. He 10.___ to catch it.