2014年9月，杂交水稻之父袁隆平成功实现了超级稻第四期目标：亩产超过1000千克。可他依然倡导节约，反对“舌尖上的浪费” 。下列相关说法错误的是(　　)

科学家发现shake突变纯合子果蝇对二乙酯乙醚极其敏感，二乙酯乙醚能引起纯合子果蝇神经冲动传导异常而发生惊厥，如图是shake突变纯合子果蝇与野生型果蝇某神经纤维在A时刻受到刺激而发生的膜电位曲线．参照该图分析，下列叙述错误的是（　　）

①There is a ping-pong game on April ____ (twenty-nine)．

②____ Tom ____ (like) the tennis game?　

③Jim ____ (have) an art class every day.

④Do you know his brother is only 5 ____ (year) old?

⑤ My mother wants ____ (have) a party for me.

⑥Those boys and girls are all ____ (China).

⑦ -How many ____ (sweater) do you have?  -Three.

⑧Today is my ____ (twenty) birthday.

⑨They want to have two baseball ____ (game).

⑩When ____ (be) the School Day?

如图，O是边长为a的正方形ABCD的中心，将一块半径足够长，圆心为直角的扇形纸板的圆心放在O点处，并将纸板的圆心绕O旋转，求正方形ABCD的边被纸板覆盖部分的面积为（   ）