The light in Mr. Zhang’s office is still on. I am afraid he ________ his work yet.
A. doesn’t finish         B. didn’t finish          C. hasn’t finished
C

試題分析：句意：張先生辦公室的燈還亮著�？峙滤�沒完成工作。句中的yet，往往和現(xiàn)在完成時連用，其結構是have/ has+動詞過去分詞，故選C。
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