---Look at the boy running on the playground. Is it David?
---It ________ be him. I saw him go to the teachers’ office just now.
| A．mustn’t | B．can’t |
| C．couldn’t | D．must |
--- Do you know what Millie and Andy were doing at 8 o’clock yesterday?
--- As Millie_____ TV, Andy _____ the door to welcome Tom.
| A．was watching: was opening | B．watched; opened |
| C．was watching; opened | D．watched: was opening |
It’s time for test. Be quiet, please. I’m going to _____ your test papers.
| A．give up | B．give out | C．hand in | D．work out |
---Have you finished your homework_____?
---No, not_____.
| A．already, already | B．yet, yet | C．already, yet | D．yet, already |
Please ask ___________. He may know which one is __________.
| A．he, your | B．him, yours | C．his, you | D．him, your |
Would you like _____________ to drink?
| A．buying something | B．to buy something |
| C．buying anything | D．to buy anything |