Why can musicians hear better according to Nina Kraus?

(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 ______ (单选题)They did ______ their father told them. (单选题)—How soon will you finish the building?—______. (单选题)—Which would you like, Madam, tea or coffee?—______, thanks.