正在生长发育时期的青少年,应多吃下列哪一组食物( )
A:含蛋白质、钙、磷多的食物
B:甜食
C:含脂肪成分多的食物
D:谷类食物
He is a very i____(有影响的)man in the government and is in an important position.
They're going to have breakfast ____ ____ ____.