The United States of America _____one of the most developed countries in the world.
---Jackson had a car accident. --- He _______ have drunk so much and driven.
Rosa knows she is the eldest of the three children in the family, and she must work hard to _______ the other two. So she does.
— The floor is too dirty. — I know. It _______ for weeks.
第二部分:英语知识运用(共两节,满分45分) 第一节:单项填空(共15小题;每小题1分,满分15分) — It seems you want to say something, eh? — Yes, smoking is strictly _______ during the time of your visiting here in the storehouse.
He is reading the article his daughter has just finished____________any spelling mistakes.