They have been working ____ a teacher for 10 years. A. at B. in C. as D. of

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They have been working ____ a teacher for 10 years. A. at B. in C. as D. of
They have been working ____ a teacher for 10 years.
A. at B. in C. as D. of

They have been working ____ a teacher for 10 years. A. at B. in C. as D. of
C.as
work as a teacher固定短语,“当老师”的意思.work as +a +职业 常用短语“当.”

c

as“作为”的意思

C. as