对划线部分提问 The boys are sitting under the tree ; There are thirty students in the classroom ; Their bags are black ; m fine

请对划线部分提问 six bags of

根据划线部分提问 There are forty-one students in our class

就划线部分提问 I can see a bottle of water on the table

对划线部分进行提问 m playing the football in the playground