扩句

①老师讲。

②他保持作风。

    In the second lesson, the teacher still____him to draw an egg, but he____the egg on a plate. Little Leo____unhappy and asked, "____do we draw eggs all the time?" "Look ____. It's an egg again, but it looks____." said the teacher.

读19世纪中期到20世纪初“近代企业资本情况变化表”。这种变化主要是因为（    ）