根据句意及括号内说给词的提示填空.
问题描述：
根据句意及括号内说给词的提示填空.
1.Don't talk.My baby ____(sleep)
2.Listen!Who ____(play) the violin in the next room?
3.Look!The monkry ____(run) to the tree.
4.The girl ____(not sing).She is dancing.
5.-____ the students ____(have) English class?
-No,they aren't.
答
1.is sleeping
2.is playing
3.is running
4.isn't singing
5.Are,having如图，AF、CE、BD交于点B且BE平分 角DBF 且 角1=角c,问BD与AC平行吗？