Millie is this year.
| A．13 years | B．13 year | C．13 years old | D．13-year-old |
---Could you please come to the museum with me this afternoon?
---Sorry, I ______ . I have to take a piano lesson at 2 pm.
| A．couldn’t | B．mustn’t |
| C．can’t | D．needn’t |
--- Lin Tao, can I use your English dictionary?
--- Sure. But you _______ return it before the class.
| A．must | B．can | C．may | D．would |
You_______ play with the knife. You ______ hurt yourself.
| A．mustn’t; may | B．mustn’t; mus |
| C．shouldn’t; must | D．can’t; should |
— It seems that Mr. Wu is standing there.
— It ______ be him because he called me from Canada just now.
| A．mustn’t | B．can’t |
| C．needn’t | D．shouldn’t |
—Will you please answer the door? It ________ be your sister.
—Sorry, I ________. I’m feeding the rabbit.
| A．must; mustn’t | B．may; can’t |
| C．will; can’t | D．must; needn’t |