单项选择题A．The exam format is still underway.B．The exam format is not any easier.C．The exam format hasn’t been tested yet.D．The exam format hasn’t been introduced yet.

单项选择题A．Because they are busy serving food to their children.B．Because they are busy keeping order at the dinner table.C．Because they have to pay more attention to younger children.D．Because they are tired out having prepared food for the whole family.