6.学习是人类独有的现象。（ ）

48.The 42% of Americans who have at least one step-relative typically feel a stronger sense of obligation to their biological parent, child or sibling than to their step-relatives.

34.Early to bed and early to ______ makes a man healthy, wealthy and wise.

14.“陵节而施”出自《礼记·学记》中的“不陵节而施之谓孙”，这向话指的是教育要遵循个体发展的（ ）。

二、多选题（30分）31.His words ______ a threat.

10. _______, I will help you with your work.

2. —How was the journey? Did you come back by plane or by train?—For some reason. I came back by train. I _____ back by plane, though.

54.Zuffi describes Morandi as one of the most intimate and poetic expressionists of European art in the central decades of the 20th century.

43.I took ______ trouble over this job.

14.The _______ of the Titanic was found in September 1985, but recovering it is a very difficult prospect.

8. The police had difficulty in _______ the fans from rushing on to the stage to take photos with the singer.

28. Mr. Harrison was finally employed by the company because his ability and work experience could ________ the position perfectly.