Dr. Anderson is aware that we still have______long way to go in improving human living conditions and in fighting sickness______

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问题 Dr. Anderson is aware that we still have______long way to go in improving human living conditions and in fighting sickness______.

选项 A、the: where it is found
B、a: wherever it is found
C、a: wherever is it found
D、/: where is it found

答案B

解析 句意:安德森医生明白,在提高人类的生活条件、战胜在各个地方发现的疾病这两方面,我们还有很长的路要走。have a long way to go意为“有很多事要做;有很长的路要走”,为固定搭配,应用不定冠词a。wherever it is found意为“无论它是在哪里发现的”,在句中引导地点状语从句。
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