You won’t lose weight______you keep a diet and take exercises every day.
| A．because | B．unless | C．if | D．but |
English by many people around the world today.
| A．is spoken | B．was spoken |
| C．speak | D．spoke |
Tu Youyou is a Chinese scientist. She medicine since 1951.
| A．will study | B．has studied |
| C．studies | D．is studying |
Liu Yang is excited. He to Tian’anmen Square tomorrow morning.
| A．goes | B．will go |
| C．went | D．has gone |
— Must I wash my skirt tonight?
— No, you . You can wash it tomorrow.
| A．can’t | B．shouldn’t |
| C．needn’t | D．mustn’t |
Billy is than his brother.
| A．tall | B．taller |
| C．tallest | D．the tallest |