There is no doubt that your fluent English will give you a (an) _______ over other competitors for volunteers in Expo 2010 Shanghai.
| A． benefit | B． profit | C． advantage | D． reward |
_______ that your resume works for you, I recommend writing it more like a proposal than a job description.
| A．Ensuring | B．Ensured | C．Having ensured | D．To ensure |
The headmaster was______ as to how to inform her of the news that her daughter failed to pass the exam again.
| A．at ease | B．in relief | C．in a hurry | D．at a loss |
Your sister must be helping the little girl with her homework, _______ ?
| A．needn’t she | B．mustn’t she | C．isn’t she | D．must she |
Unbelievable as it is, the film 2012 without doubt________ a warning that human beings are faced with potential dangers
| A．belongs to | B．serves as | C．exists in | D．accounts for |
Is _______ Qinghai-Tibet Railway plays an important role in China’s railway history the topic that you’re coming to?
| A．it | B．that | C．what | D．this |