——Mary stays alone in the classroom and looks sad.
——________ to her?
| A．What happens | B．What is happened |
| C．What is happening | D．What was happening |
—Must I take the medicine every day?
—No, you _______.
| A．must | B．mustn’t |
| C．needn’t | D．can’t |
He eats _______ food, so he is _______ fat.
| A．much too; too much | B．too much; much too |
| C．much too; the many | D．too much; too many |
—How are you feeling today?
—________ I think I can go to the picnic with you tomorrow.
| A．Not too bad. | B．Much better. |
| C．Very bad. | D．Not so well. |
We should eat _______ fruit and vegetables, but _______ meat. It is good for our health.
| A．more; less | B．more; more |
| C．less; more | D．less; less |
—Must we keep the window _______ all the time?
—No, you don’t have to.
| A．opening | B．opened |
| C．to open | D．open |