—Look! The lights in the teachers’ office are still on. Is Mr. Li working?
—No. It _______ be Mr. Li. I saw him leave just now.
| A．may not | B．mustn’t | C．can’t | D．needn’t |
Who’s the young man ____ a gray jacket?
| A．on | B．in | C．at | D．of |
Is this a picture of ____ family, Jim?
| A．your | B．my | C．our | D．its |
Do you see Mr. Brown go ____?
| A．to upstairs | B．in upstairs | C．down /upstairs | D．upstairs |
–Is there ____ milk in the glass?
---Yes, there is ____.
| A．some; little | B．any; any | C．any; some | D．a; any |
---Do you often _____ your sister?
---Yes, she often writes to me.
| A．hear | B．hear of | C．hear from | D．hear about |