请您给予具体解释,就是想知道理为什么这样做?
1.On China's Got Talent (中国达人秀),the boy made the little puppy______on the stage for a long time
A standing B to stand C stand D stood
2.________wonderful concert they are putting on in the city square!
A How B What C What a D How a
3.Mary ______the meal tonight ,because her mother was out .
A cook B cooks C cooked D will cook