As a famous dancer, she needs ____ (dance) for two hours every day.
“三过家门而不入”赞颂了我国远古时期一位首领公而忘私的献身精神。这位首领是（ ）
营养物质中能提供能量的物质是糖类、脂肪和蛋白质．
—Can you ______English?
—Yes, a little. （ ）
