They are [ ] the children playing.括号中填什么?

They are [ ] the children playing.括号中填什么? Some children are playing in the swimming p________..填什么 Look at the children .They are playing soccer. The children are playing games happily.They look________.A.r The store( )many kinds of things.They are very cheap.括号中填什么? The children are playing games. The children are playing happily. they are playing basketball ( on the field)对括号提问. ____the moment they are playing on the playground 填介词 ==The children are playing--- They look very --- ==So they a 4.Look!The children are playing _______,they are always ____ The children are playing ____ in the park.They all look quit