15. What is Dr. Richard Pile's concern about classifying obesity as a disease?

21、As the result of her divorce, she was obviously()the double burden of playing the role of both mother and father。resort to、prior to、make allowances for、back off、wonder at、give way to、saddle with、base upon / on

20、One day they passed more than 20 villages()and some of these are said to have stretched for six miles or more。prepare for、be bound to、stand up for、in favor of、speculate about、in the company of、in the form of、be liable to、invest ... with、in succession

19、The young man is very happy and proud to be()the old professor because he always feels great when talking with him。prepare for、be bound to、stand up for、in favor of、speculate about、in the company of、in the form of、be liable to、invest ... with、in succession

18、Young people should enter into a broad flexible training program, through which they can learn a lot and be()their future careers。prepare for、be bound to、stand up for、in favor of、speculate about、in the company of、in the form of、be liable to、invest ... with、in succession

17、Plato was a superb writer, and his works are part of the world's great literature. Most of his existing work is()dialogs and letters。prepare for、be bound to、stand up for、in favor of、speculate about、in the company of、in the form of、be liable to、invest ... with、in succession

16、During the weeks of discussion, delegations from groups who are interested in the resolution may call on representatives to()their point of view。prepare for、be bound to、stand up for、in favor of、speculate about、in the company of、in the form of、be liable to、invest ... with、in succession

15、Nature has()these animals a capacity for not showing
fear。prepare for、be bound to、stand up for、in favor of、speculate about、in the company of、in the form of、be liable to、invest ... with、in succession

14、Indeed, if teachers want to()how far students might get in life a better measurement than grades might be how hard the students try。prepare for、be bound to、stand up for、in favor of、speculate about、in the company of、in the form of、be liable to、invest ... with、in succession

13、Because of easy access to the Internet, the new breakthrough to create something truly creative()happen anytime now。prepare for、be bound to、stand up for、in favor of、speculate about、in the company of、in the form of、be liable to、invest ... with、in succession

12、Some reform advocates ignore the impact of class size on student achievement, and they are()what they call as apriority: teacher effectiveness。prepare for、be bound to、stand up for、in favor of、speculate about、in the company of、in the form of、be liable to、invest ... with、in succession