Circus tigers, although they have been tamed, can _____ attack their trainer.
| A．unexpectedly | B．deliberately | C．reluctantly | D．subsequently |
Confucius (孔子) didn’t accept the religious ideas of his times, and was __________ about the supernatural.
| A．cautious | B．admirable | C．skeptical | D．optimistic |
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 |