--Who should be responsible for the accident?
-- The boss, not the workers. They just carried out the order .
| A．as told | B．as are told |
| C．as telling | D．as they told |
Why____you play the piano in the midnight? It ‘s so noisy.
| A．do | B．will | C．must | D．shall |
All the pictures in this book, ______ otherwise stated, come from those taken by Miss Brown.
| A．unless | B．until | C．even if | D．as if |
---I acquired ______ Van Gogh from a businessman from Paris the other day.
---Really? Are you sure it’s ______ real one?
| A．/, a | B．/, the |
| C．a, a | D．a, the |
The driver had to______because the traffic light had turned red.
| A．set up | B．shut up |
| C．catch up | D．pull up |
--- I wonder if I could pay the bill by check.
--- ______. The card machine has just broken down.
| A．No problem | B．Take your time |
| C．Never mind | D．I’m sorry |