the children ( ) on the playground when l left school 为什么用were playing

The children on the s____are playing happily the children are on the farm on the ___. 填空 Some children were s_____ on the ice. 1.The children are on on the farm .----- the children are on __________ on a farm. the headmasteu saw the children playing on the playground (变成复合句）the headmasteu saw the children ()()on the playground impact on children 还是impact on the children 其中的区别是什么 on Children's Day 和on the Children's Day 那个正确? where are the children sitting?/what are the children sitting?On the sofa 英语翻译The children ---------- ---------- ---------- ---------- on the beach last weekend. The children often go and visit the m_____ on Sundays. while he___(write)on the blackboard,the children ____(talk). The children are fly kites on the grass.改错 The children are fly kites on the gress.改错 Look at the children.They_____(plant) trees on the hills the children lie on the beach now错哪了 The children often practice _______ the guitar on weekends.为什么 Those____(candy)on the desk are for the children