At our school, we have to _______ uniforms every day.–So do we.

The old man was _______ sad _______ say a word when he heard the bad news.

With the help of the teachers and classmates, the boy worked hard and finally caught up with his classmates. Now he is _______ all the others.

Listen! Is that Linda singing in the next room?— No, it ________ be her. She is still in Shanghai.

“I want my leg! I want to run! I want to jump!”, a girl cried in the hospital in Libya(利比亚).