单项选择题
The National Institute of Health is discussing ways of tackling the problem of childhood（）.
A.cafeteriaB.membershipC.flavorD.obesity
单项选择题 To （）how the system works，Bruce shows off the prototype of a 3D analysis tool.
单项选择题 We’re firmly（）to the manager’s latest decision to expand overseas market.
单项选择题 Mozart had an incredible capacity to（）other individuals，their facial gestures，their dialects.
