30．In 2010，China enjoyed its best Winter Games results，_______11 medals in Vancouver—five gold included．
| A．to collect | B．collected | C．being collected | D．Collecting |
Best of all, with online education, we can stick to our jobs and at the same time study and _______the latest knowledge.
| A．absorb | B．entertain | C．reflect | D．attract |
-- Why was the driver taken to the police station last night?
-- Because he refused to ______ to a blood-alcohol test and attacked the police.
| A．apply | B．object | C．submit | D．belong |
The patient was in bad need of operation but there was no guarantee(保证) that she would survive the anaesthetic (麻醉剂), which made the doctors on the horn of a __________.
| A．process | B．arrangement | C．ceremony | D．dilemma |
You _____ get the machine repaired this week. I won’t need it until next month.
| A．mustn’t | B．needn’t | C．shouldn’t | D．can’t |
Our manager never fails to answer a phone call ______ she is very busy.
| A．since | B．once | C．even if | D．so that |