Children are standing _________ and getting on the bus A on line B in a line C on a line D in line

where are the children? 英语翻译： Children are antiquities. are you good__young children? Children are our future. Why are the children ( ) ( )children are there? children over 8 are The children are playing games. children are these piaying cards these are 什么 children 急 those children are very tall. Children are what their parents There are ____ (we)children _________ ___________ children are there? the children is 还是are Children are what the mothers are. “children are what the mathers are hou nice children they are!的children前要加the吗