【C8】
A．work
B．land
C．life
D．star
请帮忙给出正确答案和分析，谢谢！
Being a pop star can be quite a hard life？
A．workB．playC．programD．pain
A．workB．workedC．working
Its said that Dr. Anderson was breaking fresh______in cancer research.A．floorB．landC．earth
【C8】A．satelliteB．moonC．planetD．star
【C15】A．workB．landC．lifeD．star
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