著有《普通教育学》并被西方誉为“科学教育学之父”的教育家是（ ）。

(单选题)—Aren’t you Mary’s sister?—______. I’m her aunt. (单选题)She asked me ______ he could dance or sing. (单选题)—Do you want to ______ at the meeting?—No, I have nothing to (单选题)______ Yellow River is the second longest river in our count (单选题)My little sister is so tired, and she can hardly walk, _____ (单选题)It ______ us two hours’ walk to get to our school. (单选题)Mrs.Hu asked Liu Fang and ______ to take part in the English (单选题)He was made ______ thirteen hours a day by his boss. (单选题)Either you or he ______ the team. (单选题)One of the boys is ______, and all the other boys are ______