they were singing a moment ago对singing进行提问
they were singing a moment ago对singing进行提问
They are singing in the classroom.对"are singing"提问
They are singing in the classroom.对are singing 提问
his brother likes singing very much 对singing 进行提问
they are lawghing and singing.对划线部分提问:lawghing and singing
She likes singing and dancing.对singing and dancing进行提问.必须是(
she is singing改为否定句、一般疑问句、对singing进行提问
They were singing while we were dancing.
They were singing while we were dancing
They were singing whenwe were dancing
对“a moment ago"提问,用什么?
a,there,ago,were,moment,they(.)(连词成句)