---Look! The telephone is broken. Someone damaged it ________ purpose.
---That may be right. But perhaps it was broken _________ accident.
| A．on; by | B．by; by | C．on; on | D．by; on |
Successful people always make ________ preparations for any potential setbacks.
| A．final | B．urgent | C．abrupt | D．adequate |
With a huge amount of food ________，all of the staff are busy preparing for the dinner tonight.
| A．would serve | B．served | C．to serve | D．serving |
It was ________I went there ________I began to know something about the matter.
| A．until；when | B．until；that |
| C．not until；that | D．not when；that |
________ got on the train when it began to move.
| A．No sooner had I | B．I had no sooner |
| C．Hardly had I | D．I hardly had |
Looking at her _______ looks，we were _______.
| A．astonished；confused | B．astonishing；confusing |
| C．astonishment；confused | D．astonished；confusing |