To put it simply, if you want to be ________ success in the business world, you need ______ high level of English competence.
| A．a, a | B．/, a | C．/, / | D．the the |
My dictionary ________ . I have looked for it everywhere but still ______ it .
| A．has lost ; do not find | B．is missing ; do not find |
| C．has lost ; have not found | D．is missing ; have not found |
The news about the terrible flood there greatly discouraged ______ these for a sight-seeing .
| A．us from going | B．us to go | C．our going | D．our to go |
He's unlucky , and he's always suffering _____ luck one after another .
| A．a sick | B．an ill | C．sick | D．ill |
Our decision _____ was wise .
| A．of waiting | B．to wait | C．for waiting | D．to be waiting |
I couldn't have got to the meeting on time - _______ an earlier train .
| A．if I had not caught | B．unless I had caught | C．if I did not catch | D．unless I caught |