读美国及日本略图，分析回答问题：
E____ with new scientific farming methods, they have been able to use less farmland than in the past.
①获得快乐时，与家人分享 ②碰到困难时，向家人求援
③生病时，得到无微不至的呵护 ④品行有缺点时，受到正确的引导和教育
The teacher did what she could _____ that child.
的值为16，则循环体的判断框内①处应填的是 （ ）
