On Venus there is a lot of__________.

儿童的发展是通过()。

人们常说“聪明早慧”“大器晚成”,这表明人的身心发展具有( )

强调教育学的心理学和伦理学基础，奠定了科学教育学基础的教育家是（）。

The working parent is not willing to listen to her (his) four-year-old child talking about his sandbox games because she (he) is__________.