—Someone is knocking at the door. Is it Ann?
—It ________ be her. She is giving a performance at the theater now.
| A．may | B．must | C．can't | D．mustn't |
相关试题
He ate a lot and did little exercise, so he _______ 10 pounds.
| A．put on | B．put away |
| C．put out | D．put off |
— This is your order, a sandwich and an apple pie. _______
— I’ll have it here.
| A．For here or to go? | B．Something to drink? |
| C．Anything else? | D．Is that OK? |
I _______ with my parents when he rang me up yesterday afternoon.
| A．am shopping | B．am shoping |
| C．was shopping | D．was shoping |
mean?
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