---Who is making much noise?
---It ____ be Timmy. He is sleeping now.
| A．can’t | B．may not |
| C．mustn’t | D．couldn’t |
Max is hardworking, cheerful, and ______ honest.
| A．after all | B．first of all |
| C．on the whole | D．above all |
We should respect teachers because they _____ us with knowledge.
| A．provide | B．afford | C．support | D．offer |
-- Could you tell me ____ last night?
-- At 10:00 pm.
| A．when she returned | B．where she went |
| C．why she left | D．how she came. |
___________ baseball, you need to go to the Yankee Stadium.
| A．To watch | B．After playing |
| C．Before buying | D．Looking at |
—Kate, I don’t think we can go to the Palace Museum by bike on time.
— You mean it’s ______ for us to take a taxi there.
| A．possible | B．necessary |
| C．useful | D．important |