Dr. Sato has indicated that there may soon be an______for an apprentice technician in the chemical-production laboratory.

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问题 Dr. Sato has indicated that there may soon be an______for an apprentice technician in the chemical-production laboratory.

选项 A、open
B、opened
C、openly
D、opening

答案D

解析 空格前是an,空格后是for,可知空格内应填入一个名词。从technician“技术人员”和laboratory“实验室”可以判断,opening“(工作的)空缺”最适合。(A)动词“打开”;形容词“开着的”。(B)动词的过去式及过去分词。(C)副词“公然地;清楚地”。
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